Waec Biology 2005 Past Questions and Answers

Question 26:

• WAEC 2005

Which of the following glands secretes a substance into the blood stream of a frightened person?

A. Adrenal glands
B. Salivary glands
C. Gastric glands
D. Parathyroid glands

Question 27:

• WAEC 2005

Reading the verdict of a case by a judge or magistrate is an example of

A. A reflex action
B. An instinct
C. A conditioned reflex
D. A voluntary action

Question 28:

• WAEC 2005

Which of the following describes an example of fertilization in higher organisms?

A. Fusion of sperm and egg nuclei
B. Ejaculating of sperm into a female body
C. Male gametes germinating in the pollen tube
D. A pollen grain landing on a sticky stigma

Question 29:

• WAEC 2005

When both ovaries of the human female ovulate simultaneously and both ova are fertilized, then

A. Identical twins are produced
B. Fraternal twins are produced
C. Siamese twins are produced
D. The children produced are genetically identical

Question 30:

• WAEC 2005

Which of the following statements is not true of the light stage of photosynthesis?

A. Chlorophyll is energized by sunlight
B. Water molecules split into hydrogen and hydroxyl ions
C. Carbon (IV) oxide is reduced by hydrogen atoms in NADPH₂
D. Water is formed