Biology JAMB, WAEC, NECO AND NABTEB Official Past Questions

(a) Describe the characteristic features of the vegetation of the tropical rain forest.

(b) Name two types of savanna found in Nigeria giving one example in each case of a town where they occur.

(c) Describe briefly three ways each by which animals in arid habitats are adapted to: (i) drought; (ii) high temperatures [5 marks] 
 

 (a) (i) List five birth control methods.

(ii) State five reasons why family planning is important to a nation.

(b) Make a drawing 8 to 10 cm long of the reproductive system of a human female and label fully.
 

(a) (i) What is pollution?

(ii) State four pollutants of water

(b) Describe the effects of each of the pollutants named on aquatic organisms.

(a) Define the following terms:
(i) gene
(ii) gene mutation.

(b) Name two structures each of plants and animals where the following processes take place:
(i) mitosis
(ii) meiosis.

(c) State four advantages a farmer may hope to derive in cross breeding two different breeds of cows.

(d) State three applications of the knowledge of genetics in medicine.
 

(a) What is a balanced diet?

(b) Name the classes of food stating the importance of any two to the human diet.

(c) In a tabular form, state the source, substrate and end products of the following enzymes: (i) ptyalin: (ii) pepsin; (iii) lipase.
 

(a) In a tabular form distinguish between tropic movement and nastic movement

(b) Explain how light brings about tropic movement in the stem and root of a flowering plant.

(c) What would be observed when a growing seedling is placed horizontally?

(d) State five functions of the pituitary gland

(e) State two difference between growth in plants and growth in animals.

A termite with a relatively large head and powerful jaws is likely to be a

The theory of survival of the fittest was propounded by

Which of the following inherited conditions usually shows incomplete dominance?

If a cross between a red-flowered plant and a white-flowered plant produced red-flowered plants, the result can be described as an example of

An albino man marries a normal woman (homozygous for skin pigmentation). What is the probability that the people could have an albino child?

What is the probability of producing a child of blood group O by a woman of blood group O and a man of blood group A?

The character that is manifested in an organism in the presence of a contrasting character is known as

Two tall plants were crossed; some of their offsprings were tall and others short the possible genotypes of the parent plants were

Which of the following forms of variation will give a normal distribution?

Which of the following actions do not reflect the objectives of conservation of natural resources?

Which of the following substances is not a conservable natural resource?

Endangered species are organisms that ought to be

Which of the following bacteria lives in the root nodules of leguminous plants?

The vector of the sleeping sickness disease parasite is the

Which of the following infections would not respond to an antibiotic treatment?