Jamb Biology 2018 Past Questions and Answers

Question 16:

• JAMB 2018

The graph below shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.
Which of the statements below is valid?

A. The bird's blood was always warmer than that of the lizard
B. The body temperature of the bird varied less than that of the lizard during changes in environmental temperature
C. The body temperature of the bird remained constant despite changes in environmental temperature
D. The body temperature of the lizard was always close to that of the environmental temperature

Question 17:

• JAMB 2018

The graph below shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.
What physiological term can used to describe the regulation of the body temperature of the of the Lizard?

A. Homeostasis
B. Homoithermy
C. Poikilothermy
D. Osmoregulation

Question 18:

• 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 19:

• 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 20:

• 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