Waec Biology Past Questions and Answers

Question 831:

• WAEC 2003

The endocrine gland secreting hormone that induces the thyroid gland to produce more thyroxine is

A. Islets of Langerhans
B. Adrenal gland
C. Pituitary gland
D. Parathyroid gland

Question 832:

• WAEC 2003

The part of the nervous system that interprets blinking of the eye is the

A. Spinal cord
B. Cerebrum
C. Hind brain
D. Olfactory lobe

Question 833:

• WAEC 2003

Which of the following is the function of the iris of the mammalian eye?

A. Closes and opens the eye
B. Absorbs dangerous rays from sunlight
C. Regulates the amount of light entering the eye
D. Bringing light rays to focus on the retina

Question 834:

• WAEC 2003

The layer of light-sensitive cells in the human eye is called the

A. Cornea
B. Sclerotic layer
C. Retina
D. Conjunctiva

Question 835:

• WAEC 2003

Placentation of plants is best described as the

A. Arrangement of ovules in the ovary
B. Arrangement of fruits on the branches
C. Development of ovules in the ovary
D. Formation of the pericarp from the ovary wall