JAMB Biology Past Questions & Answers - Page 216

1,076.

Hassan and Hussain are identical twins but Hassan grows taller and fatter than Hussain. This is probably because?

A.

Hussain inherits genes for tallness and fatness from the father

B.

They have dissimilar genotypes

C.

Hussain is endowed with genes for shortness and thinness

D.

They are raised in different environment

Correct answer is D

Identical twins may share the same placenta and have the same DNA, but they will grow differently due to environmental factors.

1,077.

A population that doubles in size at constant intervals indicates

A.

sigmoid growth

B.

exponential growth

C.

population explosion

D.

rapid growth

Correct answer is B

No explanation has been provided for this answer.

1,078.

The soil type that contains nutrients that are not readily available for plants is 

A.

alluvial

B.

clayey

C.

sandy

D.

loamy

Correct answer is B

No explanation has been provided for this answer.

1,079.

Climax communities in a biotic succession are usually characterized by

A.

a constant change in the appearance of the communities

B.

different species that are constantly changing

C.

a stable composition of plant and animal species

D.

rapid changes in the plant and animal species

Correct answer is C

No explanation has been provided for this answer.

1,080.

Grasses recover quickly from bush fires in the savanna because of their

A.

perennating organs

B.

rapid growth rate

C.

fibrous roots

D.

succulent stems

Correct answer is A

No explanation has been provided for this answer.