JAMB Biology 1993 past questions

On what structures are the units of inheritance situated?

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

In which of these features do bryophytes differ from pteridophytes?

Which of the following organs or cell components are common to both the sporophyte and the gametophyte of a fern?

In which of the following organisms does a single cell perform all the function of movement , nutrition, growth, excretion and 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 mucus are dispersed by

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

Stage 3 breathes

The butterfly is of great economic importance because

Manufactured food in the plants 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 indicated the presence of

The lower jaw is typical of a

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

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

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? 4

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 automonic 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 area

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 affect 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-biodegrable 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

Soil fertility can be conserved and renewed by

What ecological condition favors the breeding of black flies?

Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because