JAMB Biology Past Questions & Answers - Page 118

586.

Use the diagram below to answer this question.

With respect to their decreasing dependence on aquatic conditions for reproduction, which of the following is the correct arrangement of the animals represented?

A.

l, IV, II, and lll

B.

IV, lll, ll, and l

C.

l, ll, IV, and lll

D.

lll, ll, IV, and l

Correct answer is B

- Like frogs, most toads lay their fertilized eggs in water, where they hatch into tadpoles before developing into adult toads. These amphibians need a safe, undisturbed body of water to lay their eggs in. However, a few species breed on land.

- the mother alligator typically lays about 35 eggs in a nest made of mud, sticks, and other plant matter. 

- Rabbits sometimes dig a burrow in which to give birth

587.

Use the diagram below to answer this question.

Based on the shape and structure of the beak and feet, the bird represented is likely to feed mainly on

A.

flesh

B.

fruits

C.

seeds

D.

nectar

Correct answer is A

No explanation has been provided for this answer.

588.

Use the diagram below to answer this question.

The main function of the feathers covering the part labeled I is to?

A.

prevent ectoparasites from attacking the animal

B.

generate heat to keep the animal warm

C.

provide some power for flight

D.

serve as insulator to maintain body heat

Correct answer is D

No explanation has been provided for this answer.

589.

Use the diagram below to answer this question.

During photosynthesis, the arrow labeled ll represents the

A.

escape of mineral salts

B.

absorption of energy from the sun

C.

release of carbon (IV) oxide

D.

release of oxygen as a by-product

Correct answer is D

No explanation has been provided for this answer.

590.

Use the diagram below to answer this question.

The movement of materials in the xylem and phloem tissues of the plant are represented by the arrows labeled

A.

lV and III respectively

B.

ll and l respectively

C.

l and ll respectively

D.

l and lll respectively

Correct answer is A

The xylem is a plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.

The phloem is a living tissue in vascular plants that conducts the soluble organic compounds synthesized during photosynthesis downwards from the leaves.