Jamb Biology Past Questions and Answers

Question 581:

• JAMB 1988

A red-coloured flower when crossed with a white-coloured one produced pink flowers. This is an example of

A. Complete dominance
B. Blending inheritance
C. Interaction of genes
D. Back crossing

Question 582:

• JAMB 1988

The turbidity of a pond can be measured using the

A. Anaemometer
B. Secchi disc
C. Theodolite
D. Hydrometer

Question 583:

• JAMB 1988

The most important substance necessary for the maintenance of life are carbon , oxygen

A. Hydrogen, soil and enzymes
B. Hydrogen, salt and water
C. Nitrogen, salt and soil
D. Nitrogen, salt and water

Question 584:

• JAMB 1988

IF an organism obtains its food by means of haustoria, it is said to be

A. Holophytic
B. Heterophytic
C. Saprophytism
D. Parasitic

Question 585:

• JAMB 1988

Which of the following relationship involves only one organism?

A. Saprophytism
B. Commensalism
C. Parasitism
D. Symbiosis