WAEC Biology Past Questions & Answers - Page 159

791.

In which of the following levels of classification are the members most similar?

A.

Order

B.

Genus

C.

Species

D.

Phylum

Correct answer is C

No explanation has been provided for this answer.

792.

In natural selection, Darwin proposed that evolution occurred because of the following conditions except

A.

food and other needs are abundant

B.

there is a fierce competition among the offsprings

C.

That the weaker offsprings are eliminated

D.

That nature selects those that will survive to reproduce their kind

Correct answer is A

No explanation has been provided for this answer.

793.

Which of the following is not a behavioural adaptation used by social animals?

A.

Cryptic

B.

Mimicry

C.

Flash

D.

Season

Correct answer is D

No explanation has been provided for this answer.

794.

Sickle-cell anaemia has persisted in the human race due to

A.

lack of proper medical care for sicklers

B.

carriers being more resistant to malaria

C.

mosquito vectors

D.

wildlife intermediate hosts

Correct answer is B

No explanation has been provided for this answer.

795.

In Mendel's experiments, it was discovered that the skin of an African can be attributed to

A.

a blending of black and white genes

B.

gene recombination

C.

loss of the epidermis

D.

mutation in the skin cells

Correct answer is D

No explanation has been provided for this answer.