Jamb Biology 1981 Past Questions and Answers

Question 26:

• JAMB 1981

Nitrification means

A. Conversion of nitrates to nitrogen
B. Fixing nitrogen into plants
C. Conversion of nitrates to nitrites
D. Changing of ammonia to nitrities, then nitrates
E. Nitrogen cycle

Question 27:

• JAMB 1981

Which of the following statements is NOT true of menstruation?

A. It occurs monthly
B. The discharge contains amniotic fluid
C. Its signifies no conception
D. It involves the lining of uterus
E. It may cause pains

Question 28:

• JAMB 1981

The tissue which connects a muscle to a bone is a

A. Cartiligae
B. Muscle fibre
C. Tendon
D. Ligament
E. Connecting fibre

Question 29:

• JAMB 1981

A fruit formed from a single flower having several free carpels is

A. A multiple fruit
B. A dry dehiscent fruit
C. A dry indehiscent fruit
D. A simple fruit
E. An aggregate fruit

Question 30:

• JAMB 1981

If the anthers of a flower mature before the stigma, the condition is termed

A. Epigyny
B. Hypogyny
C. Protogyny
D. Protandry
E. Perigyny