Waec Biology 2012 Past Questions and Answers

Question 21:

• WAEC 2012

The hair on the human skin will stand erect when the person is

A. In an air-conditioned room
B. Strolling in the sun
C. Taking a hot drink
D. Doing strenuous exercise

Question 22:

• WAEC 2012

When fertilization occurs that leads to formation of a zygote, which of the following processes takes place?

A. The tail of the sperm fuses with the egg cell
B. Both tail and head of the sperm fuse with the egg cell
C. The nucleus of the sperm fuses with the egg cell
D. The egg cell develops on its own without the sperm

Question 23:

• WAEC 2012

Which of the following structures in a flower develops into the seed?

A. Testa
B. Lntegument
C. Ovule
D. Ovary

Question 24:

• WAEC 2012

An illustration of a human male reproductive system is shown above. Which
of the labelled parts can be cut to-ensure permanent sterility?

A. I
B. II
C. III
D. IV

Question 25:

• WAEC 2012

The brightly coloured petals in some plants is an adaptive colouration for

A. Feeding
B. Pollination
C. Dispersal
D. Shedding