JAMB Biology 2012 Past Questions

Which of the following is most advanced in the evolutionary trend of animals?

Which of the following is the lowest category of classification?

Plants that show secondary growth are usually found among the

The fungi are distinct group of eukaryote mainly because they have

An arthropod that is destructive at early stage of its life cycle is

An animal body that can be cut along its axis in any plane to give two identical parts is said to be

Which of the following possesses mammary gland?

The feature that links birds to reptiles in evolution is the possession of

Countershading is an adaptive feature that enables animals to

Which of the following plant structures lacks a waterproof cuticle?

In the mammalian male reproductive system, the part that serves as a passage for both urine and semen is the

In plants which of the following is required in minute quantities for growth?

Which of the following organisms is both parasitic and autotrophic?

A function of the hydrochloric acid produced in the human stomach during digestion is to

Which of the following is a polysaccharide?

In the kidney of mammals, the site of ultrafiltration is the

Which of the following is involved in secondary thickening in plants?

An example of a fruit that develops from a single carpel is

Plant growth can be artificially stimulated by the addition of

The autonomic nervous system consists of neurons that control the

The water cycle is maintained mainly by

Plants of temperate origin can be grown in tropical areas in the vegetation zones of the

Organisms living in an estuarine habitat are adapted to

The presence of stilt roots, pneumatophores, sunken stomata and salt glands are adaptive features of plants found in the

Which of the following animals can exist solely on the water they get from food and metabolic reactions?

The most likely first colonizers of a bare rock are

The carrying capacity of a habitat is reached when the population growth begins to

The abiotic factors that control human population include

An indigenous method of renewing and maintaining soil fertility is by

The diseases caused by water-borne pathogens include

Which of the following is true in blood transfusion?

A yellow maize is planted and all the fruits obtained are of yellow seeds. When they are croos-bred, yellow seeds and white seeds are obtained in a ratio 3:1 . The yellow seed is said to be

When a colour-blind man marries a carrier woman. What is the probability of their offspring being colour blind?

The correct base pairing for DNA is

The short thick break in birds is an adaptation for

The basking of Agama lizards in the sun is to

The significance of a very large number of termites involved in nuptial swarming is to

The use and disuse of body parts and the inheritance of acquired traits were used to explain

From his study of Galapagos finches, Darwin derived his theory of evolution from

Use the diagram above to answer this question.

The organelle responsible for heredity is labelled

Use the diagram above to answer this question.

The part labelled IV is the

Use the diagram above to answer this question.Arrows represent directional movement materials.

Transportation in the xylem is represented by

Use the diagram above to answer this question. Arrows represent directional movement materials.

The arrow labelled ll represents the

Use the diagram above to answer this question.

The developing embryo is usually contained in the part labelled

Use the diagram above to answer this question.

The function of the part labelled lll is to

Use the diagram above to answer this question.

The graph illustrates

The largest number of cassava plants has an approximate height of

The type of interaction shown is referred to as

In the diagram, which of the following statement is true of the interaction