JAMB Biology Past Questions & Answers - Page 80

396.

The insect trapping movements of the leaves of the venus fly trap is a behavioural adaptation for

A.

support

B.

surviving adverse weather conditions

C.

obtaining food

D.

dormancy

Correct answer is C

When an insect traps movement of leaves, it is a behavioural adaptation for obtaining food.

397.

The period of inactivity seen in some animals during long period of heat or drought is

A.

Migration

B.

Aestivation

C.

Hibernation

D.

Adaptation

Correct answer is B

Aestivation is a period of inactivity seen in some animals during periods of heat or drought.

398.

Which of the following is a behavioural adaptation that protects prey from predators?

A.

Hibernation

B.

Shedding leaves

C.

Secreting irritating fluid

D.

Dormancy

Correct answer is C

Secreting irritating fluid is a behavioural adaptation that keep/protects preys from predators.

399.

Which of the following statements is true about arthropods?

A.

Prothorax bears only legs

B.

Mesothorax bears only legs

C.

Metathorax bears only wings

D.

Prothorax bears only wings

Correct answer is A

The prothorax contains the first pair of legs in the arthropods. It's the first of the three segments of the thorax.

400.

Long neck in giraffes is used to illustrate the theory of

A.

Use and Disuse

B.

Origin of species

C.

Origin of life

D.

Natural selection

Correct answer is A

The giraffe’s long neck is a perfect adaptation to the animal’s natural habitat. Clearly the giraffe evolved this uncommon and helpful trait in order to reach those nourishing leaves. That’s how natural selection works.

Use and disuse' theory in human life advocate the idea that animals acquired characteristics after using certain physical traits constantly.