36-Week WAEC Revision Programme — Biology
September to the May WAEC sitting. SS3 is not a year of new material so much as a year of pressure on material already met, so this is not a course to work through from the beginning — it is a testing programme. Each week you answer cold, work the ones you got wrong, and have the AI explain why you got them wrong. Anything you turn out never to have been taught, you learn there and then, and meet again three weeks later.
A week is one block of the syllabus and the prompts that cover it. You are not meant to do all of them: answer the questions first, and let what you get wrong decide which of the rest you need. Fifteen or twenty minutes a subject is a real week's work — nine subjects do not fit any other way.
Three prompts in each topic are free to try before you subscribe. One subscription opens everything this guide links to.
Every week, in this order
Start with the questions, not the explanation. The first two steps are in every week; a purpose-written mistake or pitfalls prompt appears in about half of them, and where it does not, your own wrong answers are the material for step three.
- 1. Retrieve — Answer cold, with nothing in front of you. Wrong answers are the point — they show you where the week's work is.
- 2. Drill — Work the ones you missed properly, showing every step, so you and the AI can both see where it went wrong.
- 3. Explain my error — Ask why your answer was wrong, not just what the right one is. Where the week offers a Spot My Mistake or WAEC Pitfalls prompt, use it.
- 4. Teach me — Only if the error turns out to be something you were never taught. Then come back and retrieve it again.
Cell Biology & Classification
↑ Jump to week- Week 1
- Where meiosis takes place in the body — Quiz Me (SS3)
- Why the internal environment must be kept steady — Practice Set (SS3)
- The control of body temperature in a cold place — WAEC Exam Practice (SS3)
- The behaviour of the chromosomes in mitosis — Practice Set (SS3)
- Crossing over during meiosis — WAEC Exam Practice (SS3)
- The part the kidney plays in osmoregulation — Misconception Check (SS3)
- The genetic make-up of the daughter cells — Misconception Check (SS3)
- The control of blood glucose — Explain It Back (SS3)
- The control of body temperature in a hot place — Nigerian Scenario (SS3)
- The part the skin plays in temperature control — Project Task (SS3)
- What follows when homeostasis fails — Career Link (SS3)
- The behaviour of the chromosomes in meiosis — Explain It Back (SS3)
- How many daughter cells each division gives — Nigerian Scenario (SS3)
- Drawing the stages of each division — Career Link (SS3)
- What the internal environment is — Teach Me (SS3)
- Where mitosis takes place in the body — Teach Me (SS3)
- Week 2
- The energy released in each kind of respiration — Quiz Me (SS3)
- The deficiency diseases and their symptoms — Practice Set (SS3)
- The products of complete digestion — WAEC Exam Practice (SS3)
- A structured question on nutrition and digestion — Career Link (SS3)
- The oxygen debt after hard exercise — WAEC Exam Practice (SS3)
- A structured question on respiration — Career Link (SS3)
- The effect of a diet lacking vitamins — Misconception Check (SS3)
- An experiment on respiration in germinating seeds — Misconception Check (SS3)
- The digestive enzymes, and what each acts on — Explain It Back (SS3)
- What becomes of the products of digestion — Nigerian Scenario (SS3)
- The effect of a diet lacking protein — Project Task (SS3)
- The products of each kind of respiration — Explain It Back (SS3)
- The role of ATP — Nigerian Scenario (SS3)
- The respiratory quotient — Project Task (SS3)
- The classes of food and their sources, summarised — Teach Me (SS3)
- Aerobic and anaerobic respiration, summarised — Teach Me (SS3)
- Week 3
- Preparing a specimen for the microscope — Quiz Me (SS3)
- The taxonomic hierarchy from kingdom to species — Quiz Me (SS3)
- Sectioning a specimen by hand — Practice Set (SS3)
- The binomial system of naming — Practice Set (SS3)
- The characteristics of the kingdom Monera — WAEC Exam Practice (SS3)
- Using a dichotomous key to identify an organism — Diagram Practice (SS3)
- The biological drawing of a section — Misconception Check (SS3)
- The characteristics of the kingdom Plantae — Misconception Check (SS3)
- Mounting a section on a slide — Explain It Back (SS3)
- Observing and recording the features of a specimen — Nigerian Scenario (SS3)
- Comparing two specimens under the microscope — Project Task (SS3)
- The errors that spoil a specimen study — Career Link (SS3)
- The five kingdoms of living things — Explain It Back (SS3)
- The characteristics of the kingdom Protista — Nigerian Scenario (SS3)
- The characteristics of the kingdom Fungi — Project Task (SS3)
- The characteristics of the kingdom Animalia — Career Link (SS3)
- Choosing a specimen for study — Teach Me (SS3)
- The need for classification — Teach Me (SS3)
- Week 4
- The cell as the basic unit of life — Quiz Me (SS3)
- A tissue, and what makes it one — Practice Set (SS3)
- A system, and the organs that build it — WAEC Exam Practice (SS3)
- Comparing a unicellular with a multicellular organism — Diagram Practice (SS3)
- Each level of organisation in a mammal — Misconception Check (SS3)
- An organ, and the tissues that build it — Explain It Back (SS3)
- The complete organism as a level of organisation — Nigerian Scenario (SS3)
- Each level of organisation in a flowering plant — Project Task (SS3)
- The advantages of cell specialisation — Career Link (SS3)
- The levels of organisation of life — Teach Me (SS3)
Revisit from three weeks ago - Week 5
- Interphase, and what happens in it — Quiz Me (SS3)
- The stages of mitosis — Practice Set (SS3)
- The stages of meiosis — WAEC Exam Practice (SS3)
- Observing mitosis in a root tip — Diagram Practice (SS3)
- The chromosome number before and after each division — Misconception Check (SS3)
- The significance of mitosis — Explain It Back (SS3)
- The significance of meiosis — Nigerian Scenario (SS3)
- The differences between mitosis and meiosis — Project Task (SS3)
- Cancer as cell division out of control — Career Link (SS3)
- The stages of the cell cycle — Teach Me (SS3)
Revisit from three weeks ago - Week 6
- Drawing in pencil with clean, continuous lines — Quiz Me (SS3)
- Why a biological drawing is not shaded — Practice Set (SS3)
- Placing the labels outside the drawing — WAEC Exam Practice (SS3)
- A labelled drawing of a named animal part — Diagram Practice (SS3)
- Drawing a specimen in the correct proportions — Misconception Check (SS3)
- Ruling label lines that do not cross — Explain It Back (SS3)
- Giving a drawing its title — Nigerian Scenario (SS3)
- Stating the magnification of a drawing — Project Task (SS3)
- A labelled drawing of a named leaf — Career Link (SS3)
- The rules of a good biological drawing — Teach Me (SS3)
Revisit from three weeks ago - Week 7
- The function of each part of the microscope — Quiz Me (SS3)
- Setting up a microscope for viewing — Practice Set (SS3)
- Moving to high power without losing the specimen — WAEC Exam Practice (SS3)
- Caring for a microscope — Diagram Practice (SS3)
- Calculating the magnification of a microscope — Misconception Check (SS3)
- Focusing under low power — Explain It Back (SS3)
- Preparing a temporary wet mount — Nigerian Scenario (SS3)
- Staining a specimen, and why it is done — Project Task (SS3)
- Estimating the size of a specimen under the microscope — Career Link (SS3)
- The parts of a light microscope — Teach Me (SS3)
Revisit from three weeks ago
Nutrition, Transport & Respiration
↑ Jump to week- Week 8
- The xylem and its function — Quiz Me (SS3)
- The phloem and its function — Practice Set (SS3)
- The factors affecting the rate of transpiration — WAEC Exam Practice (SS3)
- The double circulation of a mammal — Diagram Practice (SS3)
- Arteries, veins and capillaries compared — Misconception Check (SS3)
- Transpiration, and the transpiration stream — Explain It Back (SS3)
- Translocation of manufactured food — Nigerian Scenario (SS3)
- The structure of the mammalian heart — Project Task (SS3)
- The composition of blood — Career Link (SS3)
- Why a large organism needs a transport system — Teach Me (SS3)
Revisit from three weeks ago - Week 9
- The equation for photosynthesis — Quiz Me (SS3)
- The structure of a leaf as an organ of photosynthesis — Practice Set (SS3)
- Testing a leaf for starch — WAEC Exam Practice (SS3)
- The mineral requirements of plants, and deficiency symptoms — Diagram Practice (SS3)
- Showing that chlorophyll is necessary for photosynthesis — Misconception Check (SS3)
- The role of chlorophyll — Explain It Back (SS3)
- Showing that light is necessary for photosynthesis — Nigerian Scenario (SS3)
- Showing that carbon dioxide is necessary for photosynthesis — Project Task (SS3)
- The factors affecting the rate of photosynthesis — Career Link (SS3)
- What autotrophic nutrition means — Teach Me (SS3)
Revisit from three weeks ago - Week 10
- Holozoic, saprophytic and parasitic nutrition — Quiz Me (SS3)
- A balanced diet, and its classes of food — Practice Set (SS3)
- Vitamins, and the diseases of their deficiency — WAEC Exam Practice (SS3)
- The absorption and assimilation of digested food — Diagram Practice (SS3)
- Digestion in the mouth and the stomach — Misconception Check (SS3)
- The functions of carbohydrates, proteins and fats — Explain It Back (SS3)
- Mineral salts in the diet — Nigerian Scenario (SS3)
- The human alimentary canal — Project Task (SS3)
- Digestion in the small intestine — Career Link (SS3)
- What heterotrophic nutrition means — Teach Me (SS3)
Revisit from three weeks ago
Homeostasis, Coordination & Movement
↑ Jump to week- Week 11
- The structure of the eye — Quiz Me (SS3)
- The chromosome number of a human cell — Quiz Me (SS3)
- How an image is formed on the retina — Practice Set (SS3)
- Short sight and long sight — WAEC Exam Practice (SS3)
- Homologous chromosomes — Practice Set (SS3)
- Where DNA is found in the cell — WAEC Exam Practice (SS3)
- Balance, and the semicircular canals — Misconception Check (SS3)
- Accommodation of the eye — Explain It Back (SS3)
- The structure of the ear — Nigerian Scenario (SS3)
- How sound is heard — Project Task (SS3)
- The skin as a sense organ — Career Link (SS3)
- The karyotype — Explain It Back (SS3)
- The three kinds of RNA — Nigerian Scenario (SS3)
- The gene as a length of DNA — Project Task (SS3)
- How a change in DNA changes a character — Career Link (SS3)
- The five sense organs — Teach Me (SS3)
- The structure of a chromosome — Teach Me (SS3)
Revisit from three weeks ago - Week 12
- The role of messenger RNA — Quiz Me (SS3)
- The control of body temperature — Quiz Me (SS3)
- The role of transfer RNA — Practice Set (SS3)
- Reading a codon from the genetic code — WAEC Exam Practice (SS3)
- The control of the water content of the body — Practice Set (SS3)
- Negative feedback — WAEC Exam Practice (SS3)
- A structured question on homeostasis — Career Link (SS3)
- A mutation, and its effect on a protein — Misconception Check (SS3)
- The part the liver plays in homeostasis — Misconception Check (SS3)
- The role of the ribosome — Explain It Back (SS3)
- The anticodon — Nigerian Scenario (SS3)
- The assembling of a polypeptide chain — Project Task (SS3)
- Why protein synthesis matters — Career Link (SS3)
- The role of the hypothalamus — Explain It Back (SS3)
- The role of ADH — Nigerian Scenario (SS3)
- The effects of dehydration — Project Task (SS3)
- Where in the cell protein synthesis takes place — Teach Me (SS3)
- What homeostasis means — Teach Me (SS3)
Revisit from three weeks ago - Week 13
- Blood clotting — Quiz Me (SS3)
- The endocrine glands of a mammal — Quiz Me (SS3)
- The immune response — Practice Set (SS3)
- The structure of a muscle — WAEC Exam Practice (SS3)
- The pituitary gland and its hormones — Practice Set (SS3)
- The adrenal gland and adrenaline — WAEC Exam Practice (SS3)
- Comparing hormonal with nervous coordination — Diagram Practice (SS3)
- The types of joint in the body — Misconception Check (SS3)
- Plant hormones and auxins — Misconception Check (SS3)
- The lymphatic system — Explain It Back (SS3)
- How a muscle contracts — Nigerian Scenario (SS3)
- Antagonistic muscles at a joint — Project Task (SS3)
- The structure of a long bone — Career Link (SS3)
- The thyroid gland and thyroxine — Explain It Back (SS3)
- The pancreas, insulin and glucagon — Nigerian Scenario (SS3)
- The control of blood sugar — Project Task (SS3)
- Phototropism and geotropism — Career Link (SS3)
- The composition and functions of blood — Teach Me (SS3)
- What a hormone is — Teach Me (SS3)
Revisit from three weeks ago - Week 14
- The structure of a neurone — Quiz Me (SS3)
- Sensory, relay and motor neurones compared — Practice Set (SS3)
- A reflex action, and an example of one — WAEC Exam Practice (SS3)
- Voluntary and involuntary actions — Diagram Practice (SS3)
- The spinal cord and its role — Misconception Check (SS3)
- The reflex arc — Explain It Back (SS3)
- The structure of the brain — Nigerian Scenario (SS3)
- The functions of the cerebrum and the cerebellum — Project Task (SS3)
- The synapse, and how an impulse crosses it — Career Link (SS3)
- The parts of the nervous system — Teach Me (SS3)
Revisit from three weeks ago
Reproduction, Genetics & Variation
↑ Jump to week- Week 15
- The advantages of sexual reproduction — Quiz Me (SS3)
- How bone and muscle work together — Quiz Me (SS3)
- The advantages of asexual reproduction — Practice Set (SS3)
- Artificial propagation by cutting and grafting — WAEC Exam Practice (SS3)
- The lever systems of the body — Practice Set (SS3)
- The movement of the leg at the knee — WAEC Exam Practice (SS3)
- A structured question on reproduction — Misconception Check (SS3)
- Locomotion in an earthworm — Misconception Check (SS3)
- Vegetative propagation in plants — Explain It Back (SS3)
- The reproductive cycle of a named mammal — Nigerian Scenario (SS3)
- The reproductive cycle of a named plant — Project Task (SS3)
- The movement of the arm at the elbow — Explain It Back (SS3)
- Locomotion in a fish — Nigerian Scenario (SS3)
- Locomotion in a bird — Project Task (SS3)
- Comparing locomotion in three animals — Career Link (SS3)
- Comparing asexual with sexual reproduction once more — Teach Me (SS3)
Revisit from three weeks ago - Week 16
- The nucleus as the store of genetic information — Quiz Me (SS3)
- Continuous variation, with examples — Quiz Me (SS3)
- How the chromosome number is kept constant through the generations — Practice Set (SS3)
- The cell cycle and its control — WAEC Exam Practice (SS3)
- A structured question joining cells to inheritance — Career Link (SS3)
- Discontinuous variation, with examples — Practice Set (SS3)
- Variation in height as a continuous character — WAEC Exam Practice (SS3)
- Drawing a histogram of a continuous variation — Diagram Practice (SS3)
- How cell biology and genetics fit together — Misconception Check (SS3)
- Variation applied in blood transfusion — Misconception Check (SS3)
- A mutation at the level of the cell — Explain It Back (SS3)
- Cancer, and the cell cycle — Project Task (SS3)
- The causes of variation — Explain It Back (SS3)
- Variation in blood group as a discontinuous character — Nigerian Scenario (SS3)
- Variation applied in crime detection — Project Task (SS3)
- Variation applied in a paternity dispute — Career Link (SS3)
- The cell as the unit of inheritance — Teach Me (SS3)
- What variation means — Teach Me (SS3)
Revisit from three weeks ago - Week 17
- What an allele is — Quiz Me (SS3)
- The genotype and the phenotype — Practice Set (SS3)
- Homozygous and heterozygous — WAEC Exam Practice (SS3)
- Writing out a genetic cross in the correct notation — Diagram Practice (SS3)
- Mendel's first law, of segregation — Misconception Check (SS3)
- Dominant and recessive genes — Explain It Back (SS3)
- The F1 and the F2 generation — Nigerian Scenario (SS3)
- A test cross — Project Task (SS3)
- Mendel's second law, of independent assortment — Career Link (SS3)
- The gene and the chromosome — Teach Me (SS3)
Revisit from three weeks ago - Week 18
- The three to one ratio of a monohybrid cross — Quiz Me (SS3)
- A dihybrid cross — Practice Set (SS3)
- Incomplete dominance — WAEC Exam Practice (SS3)
- A back cross used to find a genotype — Diagram Practice (SS3)
- The inheritance of the ABO blood groups — Misconception Check (SS3)
- The nine to three to three to one ratio of a dihybrid cross — Explain It Back (SS3)
- Codominance in the blood groups — Nigerian Scenario (SS3)
- Multiple alleles — Project Task (SS3)
- The inheritance of sickle cell anaemia — Career Link (SS3)
- A monohybrid cross — Teach Me (SS3)
Revisit from three weeks ago - Week 19
- Using a Punnett square for a monohybrid cross — Quiz Me (SS3)
- Using a Punnett square for a dihybrid cross — Practice Set (SS3)
- The offspring of two heterozygous parents — WAEC Exam Practice (SS3)
- Genetic counselling, and the use of probability in it — Diagram Practice (SS3)
- Predicting the blood group of a child — Misconception Check (SS3)
- The chance that a child is a carrier — Explain It Back (SS3)
- Why an expected ratio is not always the one observed — Nigerian Scenario (SS3)
- The chance of a boy or a girl — Project Task (SS3)
- The risk of a genetic disease running in a family — Career Link (SS3)
- Probability as a way of predicting offspring — Teach Me (SS3)
Revisit from three weeks ago - Week 20
- Crossing over, and how it breaks linkage — Quiz Me (SS3)
- The sex chromosomes X and Y — Practice Set (SS3)
- What makes a character sex-linked — WAEC Exam Practice (SS3)
- Reading a pedigree chart of a sex-linked character — Diagram Practice (SS3)
- Why sex-linked diseases are commoner in males — Misconception Check (SS3)
- How sex is determined in humans — Explain It Back (SS3)
- The inheritance of colour blindness — Nigerian Scenario (SS3)
- The inheritance of haemophilia — Project Task (SS3)
- A carrier female, and what she passes on — Career Link (SS3)
- Linked genes, and why they travel together — Teach Me (SS3)
Revisit from three weeks ago - Week 21
- Selective breeding in livestock — Quiz Me (SS3)
- The structure of a nucleotide — Quiz Me (SS3)
- Hybrid vigour — Practice Set (SS3)
- Genetic engineering, in outline — WAEC Exam Practice (SS3)
- A named example of an improved Nigerian crop — Diagram Practice (SS3)
- The double helix of DNA — Practice Set (SS3)
- The differences between DNA and RNA — WAEC Exam Practice (SS3)
- Why DNA matters in inheritance — Diagram Practice (SS3)
- The ethical questions genetic engineering raises — Misconception Check (SS3)
- Transcription — Misconception Check (SS3)
- The improvement of Nigerian crop yields — Explain It Back (SS3)
- The applications of genetics in medicine — Nigerian Scenario (SS3)
- DNA fingerprinting — Project Task (SS3)
- Preserving local varieties of crops and livestock — Career Link (SS3)
- The base pairing rules — Explain It Back (SS3)
- The replication of DNA — Nigerian Scenario (SS3)
- The genetic code, and the triplet — Project Task (SS3)
- Translation — Career Link (SS3)
- Selective breeding in crops — Teach Me (SS3)
- The two kinds of nucleic acid — Teach Me (SS3)
Revisit from three weeks ago
Ecology
↑ Jump to week- Week 22
- The factors that limit a population — Quiz Me (SS3)
- The shape of a population growth curve — Quiz Me (SS3)
- Density-dependent and density-independent factors — Practice Set (SS3)
- Competition between populations — WAEC Exam Practice (SS3)
- The exponential phase of growth — Practice Set (SS3)
- The death phase of a population — WAEC Exam Practice (SS3)
- The growth of the human population in Nigeria — Misconception Check (SS3)
- The effect of a limiting factor on a growth curve — Misconception Check (SS3)
- Competition within a population — Explain It Back (SS3)
- Predation, and its effect on population size — Nigerian Scenario (SS3)
- The carrying capacity of a habitat — Project Task (SS3)
- The effect of disease on a population — Career Link (SS3)
- The stationary phase of growth — Explain It Back (SS3)
- The sigmoid curve, and what shapes it — Nigerian Scenario (SS3)
- Overpopulation, and what follows from it — Project Task (SS3)
- Reading a population growth curve — Career Link (SS3)
- The density of a population — Teach Me (SS3)
Revisit from three weeks ago - Week 23
- A freshwater habitat and its conditions — Quiz Me (SS3)
- The forest habitat and its conditions — Quiz Me (SS3)
- An estuarine habitat and its conditions — WAEC Exam Practice (SS3)
- The savannah habitat and its conditions — Practice Set (SS3)
- The desert habitat and its conditions — WAEC Exam Practice (SS3)
- The adaptations of organisms to life in water — Misconception Check (SS3)
- The adaptations of organisms to dry land — Misconception Check (SS3)
- A marine habitat and its conditions — Explain It Back (SS3)
- The plants of an aquatic habitat — Nigerian Scenario (SS3)
- The animals of an aquatic habitat — Project Task (SS3)
- Studying a nearby pond or stream — Career Link (SS3)
- The plants of a terrestrial habitat — Nigerian Scenario (SS3)
- The animals of a terrestrial habitat — Project Task (SS3)
- Studying a nearby field or patch of bush — Career Link (SS3)
- The main kinds of aquatic habitat — Teach Me (SS3)
- The main kinds of terrestrial habitat — Teach Me (SS3)
Revisit from three weeks ago - Week 24
- Primary succession on bare rock — Quiz Me (SS3)
- Secondary succession after a fire — Practice Set (SS3)
- The seral stages of a succession — WAEC Exam Practice (SS3)
- Succession on an abandoned farm — Misconception Check (SS3)
- The pioneer species — Explain It Back (SS3)
- The climax community — Nigerian Scenario (SS3)
- Succession in a pond — Project Task (SS3)
- The effect of human activity on succession — Career Link (SS3)
- What succession means — Teach Me (SS3)
Revisit from three weeks ago - Week 25
- Parasitism, and its cost to the host — Quiz Me (SS3)
- A past question on nutrition — Quiz Me (SS3)
- Commensalism — Practice Set (SS3)
- A past question on cell structure — Teach Me (SS3)
- A past question on transport — Practice Set (SS3)
- A past question on reproduction — Explain It Back (SS3)
- A past question on genetics — WAEC Exam Practice (SS3)
- A past question on ecology — Project Task (SS3)
- Saprophytism — Misconception Check (SS3)
- Reading the wording of a past question carefully — Misconception Check (SS3)
- Mutualism, with an example — Explain It Back (SS3)
- Competition between two species — Nigerian Scenario (SS3)
- Predator and prey — Project Task (SS3)
- The interrelationships in a named Nigerian habitat — Career Link (SS3)
- Timing yourself on a set of past questions — Career Link (SS3)
- Symbiosis, and what each partner gains — Teach Me (SS3)
Revisit from three weeks ago - Week 26
- Fermentation, and its products — Quiz Me (SS3)
- The precautions to take during a food test — Quiz Me (SS3)
- The production of ethanol from cassava — Practice Set (SS3)
- Single-cell protein — WAEC Exam Practice (SS3)
- Interpreting an unexpected food test result — Practice Set (SS3)
- The apparatus of an ecology field study — WAEC Exam Practice (SS3)
- Biogas from waste — Misconception Check (SS3)
- Using a sweep net safely — Misconception Check (SS3)
- The production of local Nigerian fermented foods — Explain It Back (SS3)
- Tissue culture in plants — Nigerian Scenario (SS3)
- Genetically modified crops, and the debate about them — Project Task (SS3)
- Biotechnology and the Nigerian economy — Career Link (SS3)
- Identifying an unknown solution by testing it — Explain It Back (SS3)
- Measuring an abiotic factor in the field — Nigerian Scenario (SS3)
- Collecting small animals with a pooter — Project Task (SS3)
- Writing up a practical report — Career Link (SS3)
- What biotechnology is — Teach Me (SS3)
- Setting out a food test in a table — Teach Me (SS3)
Revisit from three weeks ago - Week 27
- The root and its regions — Quiz Me (SS3)
- The flow of energy and the cycling of matter — Quiz Me (SS3)
- The stem and its functions — Practice Set (SS3)
- The internal structure of a root — WAEC Exam Practice (SS3)
- A structured question on plant structure — Career Link (SS3)
- The effects of pollution on an ecosystem — Practice Set (SS3)
- The environmental laws of Nigeria — WAEC Exam Practice (SS3)
- A structured question on ecology — Career Link (SS3)
- The internal structure of a leaf — Misconception Check (SS3)
- The leaf and its functions — Explain It Back (SS3)
- The internal structure of a stem — Nigerian Scenario (SS3)
- Conservation as a response to damage — Explain It Back (SS3)
- An environmental impact assessment — Nigerian Scenario (SS3)
- What a citizen owes to the environment — Project Task (SS3)
- The parts of a flowering plant and their functions — Teach Me (SS3)
- The components of an ecosystem, summarised — Teach Me (SS3)
Revisit from three weeks ago - Week 28
- Variation as the basis of evolution — Quiz Me (SS3)
- Temperature as an ecological factor — Quiz Me (SS3)
- The fossil record as evidence — Practice Set (SS3)
- The evidence from molecular biology — WAEC Exam Practice (SS3)
- Light as an ecological factor — Practice Set (SS3)
- Wind as an ecological factor — WAEC Exam Practice (SS3)
- The effect of one factor on where an organism is found — Diagram Practice (SS3)
- A structured question on evolution — Misconception Check (SS3)
- Measuring light intensity in a habitat — Misconception Check (SS3)
- The evidence from embryology — Explain It Back (SS3)
- The formation of a new species — Nigerian Scenario (SS3)
- Isolation, and the part it plays in speciation — Project Task (SS3)
- Rainfall and humidity as ecological factors — Explain It Back (SS3)
- Soil as an ecological factor — Nigerian Scenario (SS3)
- Measuring temperature and humidity in a habitat — Project Task (SS3)
- Measuring the pH of a soil — Career Link (SS3)
- The sources of variation in a population — Teach Me (SS3)
- Biotic and abiotic factors — Teach Me (SS3)
Revisit from three weeks ago - Week 29
- A food web, and why it is more realistic — Quiz Me (SS3)
- Producers, and their place in a chain — Practice Set (SS3)
- Decomposers, and the work they do — WAEC Exam Practice (SS3)
- The loss of energy between one trophic level and the next — Diagram Practice (SS3)
- The pyramid of biomass — Misconception Check (SS3)
- Primary, secondary and tertiary consumers — Explain It Back (SS3)
- The trophic levels of a food chain — Nigerian Scenario (SS3)
- The pyramid of numbers — Project Task (SS3)
- The pyramid of energy — Career Link (SS3)
- A food chain, and the direction it runs — Teach Me (SS3)
Revisit from three weeks ago
Applied, Evolutionary & Conservation Biology
↑ Jump to week- Week 30
- An essay on photosynthesis and why it matters — Quiz Me (SS3)
- The career of a doctor — Quiz Me (SS3)
- An essay on the transmission and control of malaria — Practice Set (SS3)
- An essay comparing mitosis with meiosis — WAEC Exam Practice (SS3)
- The career of a pharmacist — Practice Set (SS3)
- The career of an agricultural scientist — WAEC Exam Practice (SS3)
- Using diagrams inside an essay answer — Misconception Check (SS3)
- The career of a biology teacher — Misconception Check (SS3)
- An essay on the effects of human activity on the environment — Explain It Back (SS3)
- An essay on the adaptations of a named organism — Nigerian Scenario (SS3)
- Planning an essay before writing it — Project Task (SS3)
- The marks given for a well-organised essay — Career Link (SS3)
- The career of a nurse or midwife — Explain It Back (SS3)
- The career of a laboratory scientist — Nigerian Scenario (SS3)
- The career of a conservationist — Project Task (SS3)
- The subjects needed to enter each of these careers — Career Link (SS3)
- An essay on the structure and function of the kidney — Teach Me (SS3)
Revisit from three weeks ago - Week 31
- The minimum and maximum conditions for survival — Quiz Me (SS3)
- Controlling a pest population — Practice Set (SS3)
- The management of a fish pond — WAEC Exam Practice (SS3)
- An ecological management plan for a named Nigerian habitat — Diagram Practice (SS3)
- Drought, and how it is managed — Misconception Check (SS3)
- The biological control of pests — Explain It Back (SS3)
- The management of a forest reserve — Nigerian Scenario (SS3)
- Flooding, and how it is controlled — Project Task (SS3)
- The effects of bush burning — Career Link (SS3)
- Tolerance, and the limits within which an organism survives — Teach Me (SS3)
Revisit from three weeks ago - Week 32
- The structure of a bacterium — Quiz Me (SS3)
- Water pollution from oil spillage in the Niger Delta — Quiz Me (SS3)
- The structure of a virus — Practice Set (SS3)
- Micro-organisms in medicine — WAEC Exam Practice (SS3)
- Immunisation and vaccination — Diagram Practice (SS3)
- Air pollution from gas flaring — Practice Set (SS3)
- Waste recycling as a conservation measure — WAEC Exam Practice (SS3)
- A conservation project for a school compound — Diagram Practice (SS3)
- Vector-borne diseases such as malaria — Misconception Check (SS3)
- Conserving wildlife by protecting its habitat — Misconception Check (SS3)
- Useful micro-organisms in food production — Explain It Back (SS3)
- A pathogen, and how it causes disease — Nigerian Scenario (SS3)
- The ways a disease is transmitted — Project Task (SS3)
- The body's defences against infection — Career Link (SS3)
- The work of NESREA in environmental protection — Explain It Back (SS3)
- Renewable energy as a conservation measure — Nigerian Scenario (SS3)
- What one citizen can do for conservation — Project Task (SS3)
- The conflict between development and conservation — Career Link (SS3)
- The main groups of micro-organisms — Teach Me (SS3)
- Poaching, and the laws against it — Teach Me (SS3)
Revisit from three weeks ago - Week 33
- The castes of a termite colony — Quiz Me (SS3)
- The castes of a honeybee colony — Practice Set (SS3)
- Communication in honeybees — WAEC Exam Practice (SS3)
- The advantages and the costs of living socially — Diagram Practice (SS3)
- Courtship behaviour — Misconception Check (SS3)
- The division of labour in a colony of social insects — Explain It Back (SS3)
- Communication by pheromones — Nigerian Scenario (SS3)
- Territorial behaviour — Project Task (SS3)
- Parental care in animals — Career Link (SS3)
- What social behaviour means — Teach Me (SS3)
Revisit from three weeks ago - Week 34
- Adaptations for escaping predators — Quiz Me (SS3)
- Biology in bread making — Quiz Me (SS3)
- Camouflage and mimicry — Practice Set (SS3)
- Adaptations to extremes of temperature — WAEC Exam Practice (SS3)
- Comparing the adaptations of two named organisms — Diagram Practice (SS3)
- Biology in dairy and yoghurt production — Practice Set (SS3)
- Biology in fish farming — WAEC Exam Practice (SS3)
- The careers a study of biology opens in Nigeria — Diagram Practice (SS3)
- The adaptations of parasites to their hosts — Misconception Check (SS3)
- Biology in waste treatment — Misconception Check (SS3)
- Adaptations for conserving water — Explain It Back (SS3)
- Adaptive colouration in insects — Nigerian Scenario (SS3)
- The adaptations of mangrove plants in the Niger Delta — Project Task (SS3)
- How adaptation leads to survival of the fittest — Career Link (SS3)
- Biology in the pharmaceutical industry — Explain It Back (SS3)
- Biology in poultry farming — Nigerian Scenario (SS3)
- Biology in crop production — Project Task (SS3)
- Biology in the textile and leather industries — Career Link (SS3)
- Adaptations for obtaining food — Teach Me (SS3)
- Biology in the brewing industry — Teach Me (SS3)
Revisit from three weeks ago
Mixed WAEC Practice
↑ Jump to week- Week 35
- Revising genetics for the first term — Quiz Me (SS3)
- Revising evolution for the first term — Practice Set (SS3)
- A mixed structured question on the first term's work — Explain It Back (SS3)
- A mixed essay question on the first term's work — WAEC Exam Practice (SS3)
- A timed revision test on the first term — Misconception Check (SS3)
- The diagrams most likely to be asked in the first term — Nigerian Scenario (SS3)
- The practical work of the first term — Project Task (SS3)
- The topics to give most attention to — Career Link (SS3)
- Revising ecology for the first term — Teach Me (SS3)
Revisit from three weeks ago - Week 36
- Revising the SS3 second term's genetics — Quiz Me (SS3)
- Revising the SS3 second term's ecology — Practice Set (SS3)
- A mixed structured question on the SS3 second term's work — WAEC Exam Practice (SS3)
- The diagrams to practise for the SS3 second term — Project Task (SS3)
- A timed revision test on the SS3 second term — Career Link (SS3)
- Building a revision timetable for biology — Practice Set (SS3)
- Practising the essay paper — WAEC Exam Practice (SS3)
- The practical work of the SS3 second term — Misconception Check (SS3)
- What to do in the last week before the paper — Misconception Check (SS3)
- A mixed essay question on the SS3 second term's work — Nigerian Scenario (SS3)
- Practising the objective paper — Explain It Back (SS3)
- Practising the practical paper — Nigerian Scenario (SS3)
- Using past questions in revision — Project Task (SS3)
- The commonest reasons candidates lose marks — Career Link (SS3)
- Revising the SS3 second term's physiology — Teach Me (SS3)
- The topics WAEC returns to most often — Teach Me (SS3)
Revisit from three weeks ago