JAMB Biology 1993 Past Questions

On what structure are the units of inheritance situated?

Production of naked seeds is a distinctive feature of the group of plant called

In which of the features do bryophytes differ from pteridophytes?

Which of the following organs or cells components are common to both the sporophytes and the gametophytes of a fern?

In which of the following organism does a single cells performs all the function of movement, nutrition, growth , excretion, photosynthesis?

In which of the following organisms would glycogen be stored?

The most successful group of animals in terms of diversity of species is

Flame cells are the

The spores of mucor are dispersed by

The butterfly is of great economic importance because

Manufactured food in the plant is transported through the

interveinal chlorosis is normally associated with the deficiency of

Osmic acid boiled with a solution of food substance gave a black precipitate. This indicates the presence of

Which of the labelled parts is the diastema?

This lower jaw is typical of a

The end products of the digestion of fats and oils in mammals are

The main function of blood in mammals is to transport

Members of the phylum protozoa use the contractile vacuole

The response shown by the tips of the root and shoot of a plant to the stimulus of gravity is

Which of the following is the correct order of the vertebrae along the spinal column?

Which of the following is TRUE of the process of conjugation in paramecium?

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

The main function of the petal of a flower is to

In the mammal, the autonomic nervous system consists of

In H, the cotyledons are carried above the soil because

The function of the structure labelled G is to

When it is cold, the blood vessels of the skin

Which path does sound entering the human ear follow?

What would happen to a man whose pancreas has been surgically removed?

Carnivorous plants are usually found in areas

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

Important abiotic factors which affects all plants and animals in the habitat are

The most important physical factor which affects an organism living in the intertidal zone of the seashore is

At which trophic level would the highest accumulation of a non-biodegradable substance occur?

Two organisms of different species, living in close association but not dependent on each other are referred to as

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

Plants adapted for life in salty marsh are called

Which group of plants would be the first colonizers in an ecological succession changing rocks to soil?

Soil fertility can be conserved and renewed by

What ecological condition favours the breeding of black flies?

Carbon monoxide poisons tissue by

Which of the following is an example of discontinuous variation observed in man?

In the illustration above, the genotypes of the offsprings are

Cold blooded animals are referred to as

Which of the following organisms has lost the pentadactyl limb structure?

Which of the following is the correct order of the developmental stages?

Stage 3 breathes

Blood is pumped into the right ventricle by the contraction of the auricle wall through

After circulation in the lungs, the blood returns to the left auricle through