JAMB Biology Past Questions & Answers - Page 225

1,121.

In the root vascular system, the stele is directly surrounded by the

A.

pericycle

B.

cortex

C.

endodermis

D.

parenchyma

Correct answer is A

No explanation has been provided for this answer.

1,122.

The main function of the caudal fin in Tilapia is to

A.

propel it forward in water

B.

steer it while changing direction

C.

balance it in water

D.

enable it to float in water

Correct answer is A

No explanation has been provided for this answer.

1,123.

The transition from amphibians to mammals involves the limb becoming arranged to support the weight more effectively requiring modifications in the

A.

collar bones and coccyx

B.

pectoral and pelvic girdles

C.

scapulae and clavicles

D.

vertebrae and sternum

Correct answer is B

No explanation has been provided for this answer.

1,124.

The blackfly is a vector of

A.

malaria

B.

trypanosomiasis

C.

onchocerciasis

D.

yellow fever

Correct answer is C

No explanation has been provided for this answer.

1,125.

The stage in the life history of a moth responsible for the destruction of agricultural crops is the

A.

nymph

B.

imago

C.

pupa

D.

caterpillar

Correct answer is D

No explanation has been provided for this answer.