2020 JAMB Biology Past Questions

The hormone which regulates the amount of glucose in the blood is called

Deamination occurs in the

In an agricultural ecosystem, the biotic components consist of

Epiphytes growing on the branches of trees provide an example of the relationship known as

The hyphae of rhizopus is said to be non-septate because it

The function of ribosomes in the cell is

In which of the following organisms does external fertilization take place?

The villus in the small intestine is significant because it

The butterfly is of great economic importance because

The bright colours of the comb and feathers in peacock are for

What is the term used to describe the sum total of biotic and abiotic factors in the environment of the organisms in any habitat?

Which of the following instruments is not used in measuring abiotic factors in any habitat?

The smallest living organisms which share the characteristics of both living and non-living matter are

 The process by which a red blood cell placed in distilled water absorbs water until it bursts and release its content into the surrounding is known as

Which of the following waste products in plants is excreted through the stomata and lenticels?

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The vertebra illustrated is

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The neural arch is labelled

The excretory structure in the earthworm is the

In which of the following vertebrates does the skin function as a respiratory surface?

The process of walking is under the control of the part of the brain called

The ability of the eye to focus near and distant objects is termed

A group of organisms of different species living in a particular area is described as a

The biological association that contributes directly to succession in a community is

Floating microscopic heterotrophs are mostly grouped as

Vaccination is carried out in order to

For growth to occur in organisms, the rate of

The probability of a baby being a boy or a girl depends on the contribution of the

Both recessive and dominant characters are found

In a population of living things, the parameters of size, height, weight and colour are examples of

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The process of water loss and intake indicated by the arrows labelled are respectively

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A noticeable adaptation of the animal to its aquatic habitat is the possession of

Paternity disputes can most accurately be resolved through the use of

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High relative humidity will be expected in zones

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Which of the zones is likely to be a desert?

When bacteria swim from cold to warm region, this is known as

The only caste in the termite colony whose members can feed themselves are the

Which of the following is the best explanation for a child who is phenotypically short and born of two tall parents?

Which of the following vertebrates has the simplest structured heart?

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The type of positive adaptation exhibited by the animal is

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The structure labelled I is