Waec Biology 2010 Past Questions and Answers

Question 21:

• WAEC 2010

The parts that supply food and water to the developing embryo are labelled

A. I and II
B. III and V.
C. V and VI
D. I and III

Question 22:

• WAEC 2010

The part labelled III is the

A. Albumen
B. Chalaza
C. Yolk
D. Air space

Question 23:

• WAEC 2010

Which of the following statements ls true about transpiration? It is the

A. Loss of water in the form of vapour from the surface of the’ leaf
B. Loss of water in the form of vapour from the surface of the root
C. Absorption of water in the form of vapour from the body of the pint
D. Movement of water through the body of the plant.

Question 24:

• WAEC 2010

Transportation of water in the xylem tissue involves the following except

A. Root pressure
B. Capillary action
C. Transpiration pull
D. Translocation

Question 25:

• WAEC 2010

The following are the major reasons why the butterfly lays eggs under the surface of a leaf except to

A. Shade the eggs from the direct rays of the sun.
B. Protect the eggs from predators
C. Protect the eggs from being washed away by rain drops
D. Camouflage the eggs