WAEC Past Questions and Answers - Page 4114

20,566.

The collective name for the female parts of the flower is 

A.

gynoecium

B.

androecium

C.

ovary

D.

stigma

E.

style

Correct answer is A

No explanation has been provided for this answer.

20,567.

Which of the following mammalian features acts as a shock-absorber to the developing embryo?

A.

Amniotic fluid

B.

Umbilical cord

C.

Placenta

D.

Amnion

E.

Chorion

Correct answer is A

No explanation has been provided for this answer.

20,568.

Which of the following organisms lacks a reproductive organ?

A.

Chlamydomonas

B.

Toad

C.

Pride of Barbados

D.

Cockroach

E.

Man

Correct answer is A

No explanation has been provided for this answer.

20,569.

The organ responsible for equalising air pressure in the ear is
the

A.

sacculus

B.

utriculus

C.

Eustachian tube

D.

ampulla

E.

air ossicle

Correct answer is C

No explanation has been provided for this answer.

20,570.

The refractive index of a medium relative to air is 1.8. Calculate the critical angle for the medium to the nearest degree.

A.

18o

B.

34o

C.

45o

D.

68o

E.

90o.

Correct answer is B

No explanation has been provided for this answer.