FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 476:

• JAMB 1993

The main function of the petal of a flower is to

A. Attract pollination agents
B. Protect the flower while still in bud
C. Serve as landing stage for insects
D. Protect the inner paisr from desiccation

Question 477:

• JAMB 1993

In the mammal, the autonomic nervous system consists of

A. Sympathetic and parasympathetic system
B. Brain and spinal nerves
C. Brain and cranial nerves
D. Spinal cord and spinal nerves

Question 478:

• JAMB 1993

The function of the structure labelled G is to

A. Carry out initial photosynthesis for the seedlings
B. Protect the young leaves from mechanical damage
C. Protect the young leaves from sun light
D. Protect the young leaves from insects pest

Question 479:

• JAMB 1993

When it is cold, the blood vessels of the skin

A. Dilates to increase the amount of blood flowing
B. Constrict to reduced the amount of blood flowing to the skin
C. Dilate to reduce the amount of blood flowing to the skin
D. Constrict to increase the amount of blood flowing to the skin

Question 480:

• JAMB 1993

Which path does sound entering the human ear follow?

A. Oval window → ossicles → ear drum
B. Ear drum → oval window → ossicles
C. Ear drum → ossicles → oval window
D. Ossicles → ear drum → oval window