Waec Biology Past Questions and Answers

Question 1476:

• WAEC 2013

What happens to a plant if the shoot tip is cut off and replaced by an agar block containing auxin? it will

A. Stop growing
B. Grow rapidly
C. Continue to grow normally
D. Die completely

Question 1477:

• WAEC 2013

Anaerobic respiration results in the production of

A. More energy than aerobic respiration
B. No energy
C. An equal amont of energy to aerobic respiration
D. Less energy than aerobic respiration

Question 1478:

• WAEC 2013

Which of the following is not a skeletal tissue?

A. Plasma
B. Chitin
C. Cartilage
D. Bone

Question 1479:

• WAEC 2013

Which of the following statements is not correct about the mammalian heart?

A. Oxygenated blood enters the left auricle from the pilmonary vein
B. The walls of the ventricle are thicker than those of the auricle
C. Blood passes from of blood into the right ventricle to the left auricle through the aorta
D. The tricuspid valve prevents the back flow of blood into the right auricle

Question 1480:

• WAEC 2013

Which of the following organs are used for gaseous exchange in a mature toad?

A. Gills, lungs and eardrum
B. Lungs, mouth and eardrum
C. Mouth, skin and gils
D. Skin, lungs and mouth