WAEC Past Questions and Answers - Page 1742

8,706.

Iodine is normally applied to the severed umbilical cord of a piglet so as to

A.

Supply iodine needed by the piglet for growth

B.

Reduce maturity period

C.

Prevent the entry of micro-organisms into the piglet

D.

Produce pigs without much abdominal fat

Correct answer is C

No explanation has been provided for this answer.

8,707.

Oestrogen in female is responsible for

A.

Development of secondary sexual characteristics

B.

Start of oestrus cycle

C.

Parturition

D.

Attainment of puberty

Correct answer is B

No explanation has been provided for this answer.

8,708.

The act of giving birth in farm animal is called

A.

Hatching

B.

Laying

C.

Parturition

D.

Gestation

Correct answer is C

No explanation has been provided for this answer.

8,709.

The urethra in the male animal is described as a urinogenital duct because it

A.

Opens to the outside through the penis

B.

Is attached to the accessory sex glands

C.

Is a common pathway for urine and sperms

D.

Is the site for the storage of sperms

Correct answer is C

No explanation has been provided for this answer.

8,710.

A sample of air that has been passed through caustic potash will

A.

contain more oxygen than nitrogen

B.

rekindle a glowing splint

C.

have no action on lime water

D.

contain no water vapour

E.

be free of noble gases

Correct answer is C

- Potassium hydroxide also absorbs carbon dioxide from the air. - If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.