JAMB Biology Past Questions & Answers - Page 269

1,341.

The chamber of the mammalian heart with the thickest wall is the

A.

right ventricle

B.

left auricle

C.

right auricle

D.

left ventricle

Correct answer is D

No explanation has been provided for this answer.

1,342.

The greatest amount of energy will be obtained by the oxidation of 100kg of?

A.

meat

B.

butter

C.

sugar

D.

biscuits

Correct answer is B

One gram of carbohydrate provides 16kJ of energy. One gram of fat provides 37kJ.

Therefore, fats in food contribute double the energy than the equivalent amounts provided by sugar.

1,343.

The inner ear contains two main organs, namely, the

A.

eardrum and eustachian tube

B.

cochlea and semi-circular canals

C.

oval window and ossicles

D.

pinna and cochlea

Correct answer is B

No explanation has been provided for this answer.

1,344.

Short-sightedness can be corrected by lenses that are

A.

convex

B.

biconvex

C.

plano-convex

D.

concave

Correct answer is D

No explanation has been provided for this answer.

1,345.

The scapula and the ischium are part of the

A.

pectoral girdle

B.

pelvic girdle

C.

appendicular skeleton

D.

hind limb

Correct answer is C

No explanation has been provided for this answer.