JAMB Biology 1986 past questions

The function of endoplasmic reticulum is

Which of the following features of Euglena is found only in animals?

An organism found on a bare rock surface has features of algae and fungi. The organism is

In a plant exhibiting alternation of generations, the diploid multicelluar stage is known as

When the original king and queen of termites die, they are replaced by

The male cockroach differs from the female by having

The fins making up the limbs of the bony fish are

The stem differs from the root in having the xylem and phloem strands

Oxygen liberated during photosynthesis has been demonstrated to come from

Which of these is a trace element?

The main organic substances found in the human body are

Which of the following elements is essential for the formation of haemoglobin?

The severe deficiency of vitamin C leads to

In addition to the high calories derived from fats and oils, they are

The extract from a food substance reacting with sodium hydroxide and copper sulphate solutions will produce violet to purple coloration if

The three important organs that are situated close to the stomach are

Evidence that a tooth is a living part of the mammalian body can be found within the

Blood circulation in a mammal is said to be double because

Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatal cavity 4 Stomata

The aperture between the left auricle and the left ventricle is guarded by the

Which of the following statements is not correct with respect to inhalation in mammals?

The equation that can be used to summarize the process of anaerobic breakdown of sugar is

If a person is bitten by a snake on the leg, it is advisable for the person

Deamination occurs in the

In the mammalian skin, melanin and keratin are contained in the

Two main distinguishing features of the cervical vertebra are the presence of

Nastic movement is

Which of the labelled parts will develop into a new maize plant?

The structure labelled 1 is the

The main function of the structure labelled 2 is to

Gestation in mammals is the period

If a woman who is a carrier of sickle cell trait (AS) married a man who is a sickler (SS) and they had four children how many of them would be normal

Which of the following is an example of discontinuous variation?

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

An instrument that can be used to demonstrate phototropism and geotropism in plants is the

In an ecosystem, animals which feed directly on plants are called

In an agricultural ecosystem, the biotic component consists of

Which of these diseases CANNOT be prevented by immunization?

Which of the following ecological factors are common to both terrestrial and aquatic habitats?

In a community, bacteria and fungi are referred to as

The swollen shoot disease of cocoa tree is caused by a

The following are methods of soil conservation EXCEPT

Samples of different soil types are packed in glass tubes whose lower ends are plugged with cotton wool. If these tubes are suspended in a trough of water, water will rise highest after a few hours in