JAMB Biology Past Questions & Answers - Page 341

1,701.

If an animal is very active and has good muscular control, it is likely to have well-developed

A.

Olfactory lobes

B.

Cerebral hemisphere

C.

Optic lobes

D.

Cerebellum

E.

Spinal cord

Correct answer is D

No explanation has been provided for this answer.

1,702.

How many nuclei are found in pollen tube during fertilization? 

A.

2

B.

3

C.

5

D.

6

E.

7

Correct answer is B

No explanation has been provided for this answer.

1,703.

A flowering plant is monoecious if

A.

The androecium is found on one plant

B.

The gynoecium is monocarpous

C.

It produce essential organ

D.

The gynoecium and androecium are on the same plant

E.

The flowers are unisexual

Correct answer is D

No explanation has been provided for this answer.

1,704.

Which of the following statements is NOT true of the piliferous layer of root? It

A.

Has a very thin cuticle

B.

Is the outermost layer of the cortex

C.

May bear root hairs

D.

Breaks down as the root ages

E.

Is replaced by cork in old roots

Correct answer is A

No explanation has been provided for this answer.

1,705.

Which of the following types of vertebrae occur in equal numbers in the rabbit, rat and man?

A.

Caudal

B.

Thoracic

C.

Lumber

D.

Cervical

E.

Sacral

Correct answer is D

No explanation has been provided for this answer.