Jamb Biology Past Questions and Answers

Question 1641:

• JAMB 2010

The average number of individuals of a species per unit area of the habitat is the

A. Population density
B. Population frequency
C. Population size
D. Population distribution

Question 1642:

• JAMB 2010

The vector for yellow fever is

A. Aedes mosquito
B. Anopheles mosquito
C. Tsetse fly
D. Blackfly

Question 1643:

• JAMB 2010

The loss of soil through erosion can be reduced by

A. Watering
B. Crop rotation
C. Manuring
D. Irrigation

Question 1644:

• JAMB 2010

The protozoan plasmodium falciparum is transmitted by

A. Female Anopheles mosquitoes
B. Female Aedes mosquitoes
C. Female Culex mosquitoes
D. Female blackfly

Question 1645:

• JAMB 2010

A dilute solution of phenylthiocarbamide tastes bitter to some people and is tasteless to others. This is an example of

A. Taste bud variation
B. Discontinuous variation
C. Morphological variation
D. Continuous variation