JAMB Biology Past Questions & Answers - Page 335

1,671.

Gaseous exchange in Aves occurs in the

A.

tracheoles

B.

bronchi

C.

air sacs

D.

trachea

Correct answer is C

No explanation has been provided for this answer.

1,672.

The major site of photosynthesis in the leaf is the

A.

palisade parenchyma

B.

mesophyll parenchyma

C.

upper epidermis

D.

lower epidermis

Correct answer is A

No explanation has been provided for this answer.

1,673.

Fungi are heterotropic because they

A.

have no leaves

B.

lack roots

C.

are filamentous

D.

lack chlorophyll

Correct answer is D

No explanation has been provided for this answer.

1,674.

The flow of air and water in or out of the mesophyll layer of a leaf is controlled by the

A.

stomata

B.

lenticels

C.

air space

D.

guard cell

Correct answer is D

No explanation has been provided for this answer.

1,675.

An onion is a bulb because it

A.

has a tuberous stem

B.

 has a reduced stem and thick fleshy leaves

C.

has adventitous roots

D.

bears many buds at the nodes

Correct answer is B

No explanation has been provided for this answer.