Jamb Biology Past Questions and Answers

Question 2041:

• JAMB 2018

The reason why the flow of blood through the capillaries is very slow is

A. Because the walls of Capillaries are very thin
B. To avoid high blood pressure
C. To ensure that the individual does not get dizzy
D. To allow adequate time for exchange of materials

Question 2042:

• JAMB 2018

Which of the following groups of organisms has kidney as the excretory organ?

A. Fishes, amphibians, birds, man
B. Fishes, amphibians, annelids, insects
C. Fishes, reptiles, birds, tapeworm
D. Fishes, protozoans, amphibians, man

Question 2043:

• JAMB 2018

Which of the following features is not a characteristic of arteries? Arteries

A. Possess valves at internals throughout their length
B. Have thick muscular and elastic walls
C. Carry blood away from the heart
D. Transport oxygenated blood with the exception of the pulmonary artery

Question 2044:

• 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 2045:

• 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