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WAEC WASSCE 2016

WAEC Biology 2016 past questions

6 objective questions from the 2016 WAEC Biology paper. Answer each one, then reveal the answer and explanation.

All WAEC Biology past questions

  1. Question 1

    Ecology

    Fungi and bacteria that break down dead matter are

    1. Option A: decomposers
    2. Option B: producers
    3. Option C: predators
    4. Option D: parasites
    Show the answer to question 1

    Answer: A, decomposers

    Decomposers recycle nutrients from dead matter.

  2. Question 2

    Cell biology

    In which organelle does photosynthesis take place?

    1. Option A: Chloroplast
    2. Option B: Mitochondrion
    3. Option C: Ribosome
    4. Option D: Golgi body
    Show the answer to question 2

    Answer: A, Chloroplast

    Chloroplasts hold the chlorophyll that traps light.

  3. Question 3

    Excretion and respiration

    Insects breathe through

    1. Option A: gills
    2. Option B: a system of tracheae
    3. Option C: lungs
    4. Option D: alveoli
    Show the answer to question 3

    Answer: B, a system of tracheae

    Air enters through spiracles into tracheae.

  4. Question 4

    Classification

    From the list below, select the animal that is a mammal.

    1. Option A: lizard
    2. Option B: dolphin
    3. Option C: frog
    4. Option D: catfish
    Show the answer to question 4

    Answer: B, dolphin

    The dolphin is a mammal (class Mammalia).

  5. Question 5

    Transport

    Which blood vessel carries blood away from the heart?

    1. Option A: Artery
    2. Option B: Vein
    3. Option C: Capillary
    4. Option D: Venule
    Show the answer to question 5

    Answer: A, Artery

    Arteries carry blood away from the heart.

  6. Question 6

    Genetics

    In guinea pigs, the allele for black fur (B) is dominant over the allele for white fur (b). What is the genotypic ratio of the offspring of a cross between two Bb parents?

    1. Option A: 3 BB : 1 bb
    2. Option B: 1 BB : 2 Bb : 1 bb
    3. Option C: 1 BB : 1 bb
    4. Option D: 2 BB : 1 Bb : 1 bb
    Show the answer to question 6

    Answer: B, 1 BB : 2 Bb : 1 bb

    Bb × Bb gives BB, Bb, Bb, and bb: a 1 : 2 : 1 genotypic ratio.

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