JAMB Biology Past Questions & Answers - Page 111

551.

In the diagram, the maxillary palp is labelled

A.

ii

B.

iv

C.

i

D.

iii

Correct answer is B

The maxillary palp labelled iv: 

- Small antenna-like sensory appendage emerging from the maxilla.

- These palps serve as organs of touch and taste in feeding and in the inspection of potential foods and/or prey.

552.

In the diagram, the type of adaptation shown in the larva is

A.

mimicry

B.

countershading

C.

flash coloration

D.

disruptive coloration

Correct answer is D

No explanation has been provided for this answer.

553.

The economic importance of the larva in the diagram is that it

A.

is eaten by birds

B.

develop into a moth

C.

resembles the plant it lives on

D.

feeds on the leaves of crops

Correct answer is D

No explanation has been provided for this answer.

554.

In the diagram, the variation illustrated is

A.

discontinuous

B.

morphological

C.

physiological

D.

biochemical

Correct answer is B

No explanation has been provided for this answer.

555.

In the diagram, the change in the length of the neck of the giraffes shown was brought about by

A.

geographical isolation

B.

predation

C.

symbiosis

D.

natural selection

Correct answer is D

No explanation has been provided for this answer.