Jamb Biology Past Questions and Answers

Question 1961:

• JAMB 2016

In the nitrogen cycle, the nitrates in the soil are converted to atmospheric nitrogen by

A. Puterfying bacteria
B. Nitrogen-fixing bacteria
C. Nitrifying bacteria
D. Denitrifying bacteria

Question 1962:

• JAMB 2016

The relationship between a termite and the protozoam in its intestine is described as

A. Predation
B. Saproplytism
C. Symbiosis
D. Parasitism

Question 1963:

• JAMB 2016

Exo-erythrocytic phase of the life cycle of malaria parasite occurs in the

A. Liver of humans
B. Reticuloendothelial cells of humans
C. Malphigian tubules of mosquito
D. Brain of humans

Question 1964:

• JAMB 2016

Which of the following organs regulates the levels of water. salts, hydrogen ions, and urea in the mammals?

A. Kidney
B. Colon
C. Bladder
D. Liver

Question 1965:

• JAMB 2016

The rate of transpiration is NOT affected by

A. The weight of the stomata pores
B. Humidity
C. Temperature
D. The size of the stomata pores