WAEC Biology Past Questions & Answers - Page 170

846.

The substances recycled in the soil by the activities of micro-organisms during the decay of dead organisms
are first utilized by the

A.

carnivores

B.

herbivores

C.

scavengers

D.

autotrophs

Correct answer is D

No explanation has been provided for this answer.

847.

Micro-organisms which break down dead organisms and absorb their contents are called

A.

decomposers

B.

consumers

C.

parasites

D.

commensals

Correct answer is A

No explanation has been provided for this answer.

848.

Which of the following is not promoted by high wind speed?

A.

Rill erosion

B.

Weathering of parent rock

C.

Breeding of plant

D.

Opening of stomata

Correct answer is C

No explanation has been provided for this answer.

849.

Which of the following solutions is suitable for removing chlorophyll in a green leaf?

A.

Million’s reagent

B.

Methylated spirit

C.

Benedict solution

D.

Fehling’s solution

Correct answer is B

No explanation has been provided for this answer.

850.

A-person who fails to detect the bitter taste of a substance swallowed, is more likely to have

A.

dead taste buds on the tongue

B.

avoided the substance from contacting the back of his/her tongue

C.

fewer taste buds on the tongue

D.

swallowed the substance without any water

Correct answer is B

No explanation has been provided for this answer.