Co-ordination and control - Jamb Biology Past Questions and Answers

Question 141:

• JAMB 2017

Coloration of the eye is ______ variation

A. Physiological
B. Morphological
C. Adaptive
D. Recessive

Question 142:

• JAMB 2018

The reason why hospitals use saline solutions as drip Instead of water is

A. Because salt is a preservative
B. To prevent contamination of the body
C. To maintain the composition of body fluids
D. To increase the number of blood cells

Question 143:

• JAMB 2018

The part of the ear which contains nerve cells sensitive to sound vibrations is the

A. Cochlea
B. Ampulla
C. Tympanum
D. Malleus

Question 144:

• JAMB 2018

Spectacles with convex lenses correct long-sightedness by

A. Converging the light rays before they enter the eye
B. Diverging the light rays before they enter the eye
C. Reducing the light intensity before it enters the eye
D. Increasing the light intensity before it enters the eye

Question 145:

• JAMB 2018

The hormones secreted by pancreas serves to

A. Facilitate the development of facial hairs
B. Raise the level of calcium in the blood
C. Lower blood glucose level
D. Make the body react to emergencies