Jamb Biology 1999 Past Questions and Answers

Question 36:

• JAMB 1999

Vaccination is carried out in order to

A. Check the production of poison
B. Increase the activity of white blood cells
C. Increase the number of red blood cells
D. Stimulate the production of antibodies

Question 37:

• JAMB 1999

A soil consisting of alumina and iron (II)oxide is known as

A. Loamy soil
B. Clayey soil
C. Laterite
D. Podzol

Question 38:

• JAMB 1999

The sign + is used to indicate an association where an organism gains, while 0 is used where an organism is unaffected. An association indicated as +0 is known as

A. Predation
B. Commensalism
C. Parasitism
D. Competition

Question 39:

• JAMB 1999

Which of the following characterizes the white mangrove?

A. Prop roots
B. Buttress roots
C. Breathing roots
D. Stilt roots

Question 40:

• JAMB 1999

If the offspring of a cross between a brown mouse (bb) and a black mouse (BB) are allowed to interbreed, how many different genotypes would result?

A. 2
B. 3
C. 4
D. 5