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UTME 2024

JAMB Biology past questions and answers

10 questions from the most recent UTME Biology papers in our bank, across different topics. Try each one, then open the answer to see a worked solution.

  1. Question 1 · UTME 2024 · Adaptation for Survival

    The organisms that use swarming as an adaptation to overcome overcrowding are

    1. AAgama lizards
    2. Btilapia
    3. Crats
    4. Dtermites
    Show answer and solution

    Answer: D. termites

    What the question is asking: The animal that swarms when crowded.

    Key idea: When a termite colony becomes crowded, winged reproductives (alates) swarm out, pair up, shed their wings and start new colonies elsewhere.

  2. Question 2 · UTME 2024 · Plant Kingdom

    Bryophytes are an intermediate group between the higher algae and the

    1. Athallophytes
    2. Bpteridophytes
    3. Cspermatophytes
    4. Dtracheophytes
    Show answer and solution

    Answer: B. pteridophytes

    What the question is asking: Where mosses and liverworts fit.

    Key idea: Bryophytes are land plants with no vascular tissue, still needing water for fertilisation. They sit between the algae (water plants) and the pteridophytes (ferns), the first plants with vascular tissue.

  3. Question 3 · UTME 2024 · Habitats and Biomes

    One main feature of trees in the savanna habitat is the possession of

    1. Alarge, leathery leaves
    2. Bstraight, slender stems with branches near the top
    3. Cthin, smooth bark
    4. Dthick, corky bark
    Show answer and solution

    Answer: D. thick, corky bark

    What the question is asking: A savanna tree adaptation.

    Key idea: Savanna has a long dry season and frequent bush fires. Thick, corky bark insulates the tree from fire and reduces water loss.

  4. Question 4 · UTME 2024 · Respiration

    Which of the following structures enable the exchange of gases in insects?

    1. Askin
    2. Btracheae
    3. CMalpighian tubules
    4. Dflame cells
    Show answer and solution

    Answer: B. tracheae

    What the question is asking: The breathing system of insects.

    Key idea: Air enters through spiracles into branching tubes, the tracheae and tracheoles, which carry oxygen straight to the tissues. Malpighian tubules and flame cells are excretory organs.

  5. Question 5 · UTME 2024 · Population Ecology

    A community of 2 310 000 people living in an area of 2310 km² has a population density of

    1. A10 000 per km²
    2. B10 per km²
    3. C100 per km²
    4. D1000 per km²
    Show answer and solution

    Answer: D. 1000 per km²

    What the question is asking: People per square kilometre.

    Key idea: Population density = number of individuals ÷ area.

    Step 1 – Density = 2 310 000 ÷ 2310

    Step 2 – = 1000 people per km²

  6. Question 6 · UTME 2024 · Evolution

    Similar structures that are modified to work in different ways in different organisms are referred to as

    1. Ahomologous structures
    2. Banalogous structures
    3. Cdivergent structures
    4. Dconvergent structures
    Show answer and solution

    Answer: A. homologous structures

    What the question is asking: The term for same-plan, different-use structures.

    Key idea: Homologous structures share the same basic plan and origin but do different jobs, e.g. the forelimbs of a man, bat and whale. Analogous structures do the same job but have different origins, e.g. the wings of a bird and an insect.

  7. Question 7 · UTME 2024 · Animal Kingdom: Invertebrates

    Bilateral symmetry, cylindrical bodies and a gut with two openings are characteristic features of

    1. Anematodes
    2. BHydra
    3. Cprotozoa
    4. Dprotists
    Show answer and solution

    Answer: A. nematodes

    What the question is asking: The group with these features.

    Key idea: Nematodes (roundworms, e.g. Ascaris) are bilaterally symmetrical with long, cylindrical, unsegmented bodies and a complete gut with a mouth and an anus. Hydra is radially symmetrical with one opening; protozoa are single cells.

  8. Question 8 · UTME 2024 · Monera, Protista and Fungi

    Asexual reproduction in Paramecium is by

    1. Abinary fission
    2. Bbudding
    3. Cspore formation
    4. Dfragmentation
    Show answer and solution

    Answer: A. binary fission

    What the question is asking: How Paramecium multiplies.

    Key idea: Paramecium divides across its middle into two identical daughter cells: transverse binary fission. (It also undergoes conjugation, a sexual process, which is not offered.)

  9. Question 9 · UTME 2024 · Energy Flow and Nutrient Cycling

    Which of the following processes releases oxygen into the atmosphere?

    1. Arespiration
    2. Bcombustion
    3. Cdecomposition
    4. Dphotosynthesis
    Show answer and solution

    Answer: D. photosynthesis

    What the question is asking: The process that gives out oxygen.

    Key idea: In photosynthesis, green plants split water using light energy and release the oxygen. Respiration, combustion and decomposition all use oxygen and give out carbon dioxide.

  10. Question 10 · UTME 2024 · Humans and the Environment

    One of the ways of controlling schistosomiasis is by

    1. Adestroying water snails and water weeds
    2. Bclearing the bushes around the house
    3. Cwashing hands after using the toilet
    4. Dproperly washing fruits before eating them
    Show answer and solution

    Answer: A. destroying water snails and water weeds

    What the question is asking: How to control bilharzia.

    Key idea: The Schistosoma worm must pass through a freshwater snail before its larvae can enter people through the skin in water. Killing the snails and clearing the water weeds where they live breaks the life cycle.

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