JAMB Biology 2003 Past Questions

The structure that are common to both plant and animal cells are labelled

Food is stored in the structure labelled

One distinctive feature in the life history of liverworts is that they exhibit

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

The process of water loss and intake indicated by the arrow labelled I and II are respectively

The umbrella shaped fruiting body of a fully developed mushroom is the

The similarity among organisms belonging to the same group will be least within each

Hermophroditic reproduction can be found among the

An insect whose economic importance is both harmful and beneficial is the

The cell component that is present in a prokaryotic cell is the

The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with

If water that has been coloured red is poured at the base of a wilting plant, it will appear as a red stain in the cells of the

The aim of the experiment is to demonstrate

In the experimental set-up, the rubber sheet represents the organ called

The dark reaction of photosynthesis involves the

The experiment is used to demonstrate that

In the experiment, the layer of oil serves to prevent water loss

Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is

The part of the mammalian digestive system where absorption of nutrient takes place is the

The best method of propagating sugarcane is by

In mammalian males, the excretory and reproductive systems share the

Metabolic production of urea is carried out in the

The structure can be found in the

The point marked I is referred to as

Homologous pairs of chromosome separate during

An example of a caryopsis is

The response of plants to external stimuli in a non-directional manner is known as

The most important hormone that induces the ripening of fruit is

A density-dependent factor that regulates the population size of organism is

One example of fossil fuels is

The most effective method of dealing with non-biodegradable pollutant is by

The correct sequence of biomes from northern to southern Nigeria is

Mycorriza is an associationn between fungi and

A limited factor in a plant population near a chemical factory is likely to be

Soil fertility can best be conserved by the activities of

The pioneer organisms in ecological succession are usually the

If a DNA strand has a base sequence TCA, its complementary strand must be

A man and his wife are both heterozyous for the sickle-cell trait. The likely percentage of their offspring that will be either carriers or sicklers is

If the pair of alleles for baldness is given as Bb, a female carrier will be denoted by

An organism that has been extensively used to test the chromosomes theory of heredity is

A feature associated with the Y-chromosome in human is

The type of reproduction that leads to variation animal and plant population is

An insect with a mandibulate mouth part will obtain its food by

An argument against Lamarck's theory of evolution is that

The presence of sunken stomata and the folding of leaves are adaptations to

Spines and shells on animals are adaptation for

An example of cryptic colouration is the

Which of the following requires the use of carbon dating to prove that evolution has occurred?

the inactive state exhibited by an animal during hot dry seasons is termed

In the egg of a bird, the embryo is located in the