During fertilization, the direction in which the pollen tube grows is controlled by

A. Ovary

B. ovule

C. pollen grains

D. pollen tube nucleus

E. style

Crime detection in a forensic laboratory involves the use of

A. blood transfusion

B. blood analysis

C. fingerprints

D. genetic combination

E. tongue rolling ability

Which of these factors least affects population size?

A. Availability of food

B. Disease

C. Immigration

D. Rate of reproduction

E. Variation

Which of the following is NOT a natural method of birth control?

A. Abstaining from sex

B. Prolonged breast feeding

C. Rhythm method

D. Use of condom

E. Withdrawal method

Which of these is NOT an example of reflex action

A. Walking

B. Banging of feet on an object

C. Blinking of the eyes

D. Jerking of the knee

E. Sneezing

Which of these is produced by pancreas?

A. Insulin

B. Pepsin

C. Ptyalin

D. Renin

E. Streapsin

Which of the following crop diseases is caused by a fungus?

A. Cassava blight

B. Cocoa black pod

C. Groundnut rosette

D. Lettuce mossaic

E. Yam mosaic

The splitting of water molecule by light during photosynthesis is called

A. chemosynthesis

B. haemolysis

C. hydrolysis

D. photolysis

E. haemolysis

The function of ribosome is

A. excretion of waste

B. protein synthesis

C. reproduction

D. respiration

E. secretion of hormones.

The following practices are adopted in the conservation of tropical rain forest EXCEPT

A. afforestation

B. creation of game reserve

C. creation of forest reserve

D. re-afforestation

E. deforestation