JAMB Biology 2001 past questions

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

Which of the 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 structures labelled II and III respectively are

In ferns, the structure above is equivalent to the

The centre 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

The enzyme invertase will hydrolyze sucrose to give

When yeast respires 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 vessels usually pass through the structure labelled

Salts and water are absorbed in the roots and transported to the leaves by [PAGE 45]

The number of plant species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomoeas SSP, (5), sida spp (7) and Imperata spp (23) What is the percentage of occurrence of Imperat, q 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 hygrometer is used for measuring

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

Both recessive and dominant characters are found

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

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 aquatic 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

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