JAMB Biology 2001 Past Questions

An association between the root nodule of a leguminous plant and rhizobium sp, is known as

Amphibian are normally found

Viviparity occurs mainly in the

The jointed structure in insects that bears organs which are sensitive to touch, smell and vibration is the

Which of following groups is the most advanced?

Most monocots are easily recognized by their

Water fleas, wood lice and barnacles belong to the group

The mode of feeding in Amoeba and Hydra is

Which of the following organisms does not exist as a single free living cell?

The center for learning and memory in the human brain is the

Urea formation occurs in the

The structure that holds the yolk in position is labelled

The part labelled IV is the

The gas produced during tissue respiration can be identified by using

A seedling grown in the dark is likely to be

The enzyme invertase will hydrolyze sucrose to give

When yeast respire anaerobically, it converts simple sugar to carbon (IV) oxide and

The transportation of oxygen and carbon (IV) oxide in mammals is carried out by

The veins of the leaf are formed by the

The parts which function together to bring about hearing are labelled

The part labelled II is the

When specimen X is mixed with few drops of iodine solution, the appearance of a blue-black colour confirms that X is

The structure above represents a

Blood vessel usually pass through the structure labelled

Salts and water are absorbed in the roots and transported to leaves by

The number of plants species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?

Carbon (IV) oxide content of the atmosphere is least affected by

The factor that least affects food shortages in sub-saharan Africa is

The epiphytic habitat can best be described as

The highest percentage of energy in an ecosystem occurs at the level of the

The greatest influence on a stable ecosystem in nature is exerted by

The physical space occupied by an organism together with its functional role in community can be described as

A freshwater pond may contain

The hygrometer is used for measuring

The distribution of plants in a rain forest is governed mainly by

Both recessive and dominant characters are found

The probability of a baby being a boy or a girl depends on the contribution of the

Which of the following statements is true of blood groups and blood transfusion?

Which of the following is likely to encourage inbreeding in plants?

A tall plants crossed with a dwarf one produces offspring of which half are tall and half are dwarf. What are the genotypes of the parents?

In man, the ability to roll the tongue is a variation classified as

Darwin is considered the first scientist who correctly explained the theory of

The stem of a typical aqautic plant usually has many

The role of the male adult honey bee is to

The ability of an organism to live successfully in an environment is known as

The most important adaptation of xerophytes is the ability of the protoplasm to

A green snake in green grass is able to escape notice from predators because of its

For heterotrophic organisms, competition is least caused by the inadequacy of