Jamb Biology 2010 Past Questions and Answers

Question 21:

• JAMB 2010

I. Stomata → Spirogyro II. Alveoli → Earthworm III. Malpighian tubule → Mammal IV. Contractile vacuole → Protozoa.
Which of the above structures is correctly matched with the organisms in which it is found?

A. Lll
B. Ll
C. L
D. IV

Question 22:

• JAMB 2010

A food chain always begins with a

A. Consumer
B. Decomposer
C. Producer
D. Primary consumer

Question 23:

• JAMB 2010

Mycorrhizae promote plant growth by

A. Absorbing inorganic ions from the soil
B. Protecting it from infection
C. Helping it to utilize atmospheric nitrogen
D. Serving as a growth regulator

Question 24:

• JAMB 2010

The barrier between maternal and foetal blood is the

A. Placenta
B. Liver
C. Umbilical chord
D. Uterine wall

Question 25:

• JAMB 2010

The blood component that has the greatest affinity for oxygen is the

A. Lymphocytes
B. Leucocytes
C. Erythrocytes
D. Thrombocytes