Waec Biology Past Questions and Answers

Question 1356:

• WAEC 2011

Which of the following is an effector organ?

A. Tongue
B. Skin
C. Nose bridge
D. Ear glands

Question 1357:

• WAEC 2011

During sexual reproduction in Paramecium, how many times does the zygote divide to produce eight nuclei?

A. 1
B. 2
C. 3
D. 4

Question 1358:

• WAEC 2011

The testes in male mammals descend into the scrotal sac because

A. There is congestion in the lower abdomen
B. They run the risk of being destroyed
C. They need special support
D. They require a relatively low temperature

Question 1359:

• WAEC 2011

Some animals return to water bodies to reproduce because

A. Natural enemies destroy their eggs on land
B. Water nourishes their embryos and their young ones
C. They are close to their ancestors and imitate them
D. The temperature on land is not suitable for the development of their embryos

Question 1360:

• WAEC 2011

Which of the following methods is appropriate for the cultivation of cassava?

A. Budding
B. Fragmentation
C. Root cutting
D. Stem cutting