JAMB Biology Past Questions & Answers - Page 58

286.

The excretory structure in the earthworm is the

A.

malphighian tubule

B.

flame cell

C.

nephridium

D.

kidney

Correct answer is C

Nephridia remove metabolic wastes from an animal's body. Nephridia come in two basic categories: metanephridia and protonephridia.

287.

Use the diagram to answer the question

The neural arch is labelled

A.

i

B.

ii

C.

iii

D.

iv

Correct answer is B

No explanation has been provided for this answer.

288.

The relationship between a termite and the protozoam in its intestine is described as

A.

predation

B.

saproplytism

C.

symbiosis

D.

parasitism

Correct answer is C

No explanation has been provided for this answer.

289.

In the nitrogen cycle, the nitrates in the soil are converted to atmospheric nitrogen by

A.

puterfying bacteria

B.

nitrogen-fixing bacteria

C.

nitrifying bacteria

D.

denitrifying bacteria

Correct answer is D

No explanation has been provided for this answer.

290.

The adaptive importance of the nuptial flight from termite colonies is to

A.

ensure cross-breeding between members of one colony and another

B.

disperse the reproductives in order to establish new colonies

C.

provide abundant food for birds and other animals during the early rains

D.

expel the reproductives so as to provide enough food for other members

Correct answer is B

No explanation has been provided for this answer.