JAMB Biology Past Questions & Answers - Page 65

321.

In the theory of use and disuse, Lamarck proposed that evolution occurred because of the following except

A.

There is natural selection of offspring

B.

There are great changes in the environment

C.

Organisms develop specialized characters

D.

The characters are inheritable

Correct answer is A

Jean Lamarck did not propose any theory regarding natural selection.

322.

In an ecosystem, the organism that changes light energy into stored chemical energy is the

A.

Consumer

B.

Producer

C.

Decomposer

D.

Carnivore

Correct answer is B

The producer often transforms light energy into stored chemical energy; a procedure known as photosynthesis.

323.

The pathogen that cause smallpox is

A.

picornavirus

B.

peramyxovirus

C.

herpesvirus

D.

poxvirus

Correct answer is D

No explanation has been provided for this answer.

324.

Which of the following statement is correct about the Southern Guinea Savanna in Nigeria

A.

It is the largest of all the biotic community in Nigeria

B.

It has no plants species

C.

It has plants species like Iroko, Opepe, etc

D.

It has no trees

Correct answer is A

Southern Guinea Savanna is the largest of all biotic communities in Nigeria found in Oyo, Osun, Ekiti States, etc.

325.

What type of vertebrae assists in breathing alongside with the ribs?

A.

Sacral

B.

Caudal

C.

Thoracic

D.

Lumber

Correct answer is C

Thoracic cavity assists in breathing alongside the ribs because it is found around the chest.