JAMB Biology Past Questions & Answers - Page 50

246.

The exchange of gases between the environment and the respiratory organs of vertebrates is referred to as

A.

inhalation

B.

respiration

C.

expiration

D.

breathing

Correct answer is D

No explanation has been provided for this answer.

247.

The cells and tissues of the nose, throat, chest diaphragm and lungs from the

A.

circulatory system

B.

respiratory

C.

transport system

D.

digestive system

Correct answer is B

No explanation has been provided for this answer.

248.

Lateral meristem in flowering plants is found in the

  • A. cortex
  • B. pericycle
  • C. cambium
  • D. pith

A.

cortex

B.

pericycle

C.

cambium

D.

pith

Correct answer is C

No explanation has been provided for this answer.

249.

Which of the following substances is not usually present in the urine of a healthy person?

A.

Urea

B.

Mineral salts

C.

Glucose

D.

Water

Correct answer is C

No explanation has been provided for this answer.

250.

Flaccidity in plants is associated with

  • A. cessation of photosynthesis
  • B. wilting
  • C. turgidity
  • D. discolouration of leaves

A.

cessation of photosynthesis

B.

wilting

C.

turgidity

D.

discolouration of leaves

Correct answer is B

No explanation has been provided for this answer.