Jamb Biology Past Questions and Answers

Question 256:

• JAMB 1982

An hormoiothermic animal kept in a room where the temperature is lower than the body temperature may lose heat by four physical process. Which of the following processes is NOT connected with the body temperature regulation ?

A. Radiation
B. Sweat
C. Evaporation
D. Conduction
E. Convection

Question 257:

• JAMB 1982

Which of these food chains is NOT possible in a forest?

A. Diatom → fly → toad → snake
B. Fly → toad → snake→ hawk
C. Leaves → antelope → man → lion
D. Leaves → caterpillar → bird → lion
E. Leaves →goat → man→ lion

Question 258:

• JAMB 1982

If a tall man (TT) maries a dwarf woman (gg) and they have four male children, the offspring will be

A. All short
B. Three short and one tall
C. Two short and two tall
D. One short and three tall
E. All tall

Question 259:

• JAMB 1982

A married couple has 10 children and they are all girls. Which of the following is the CORRECT explanation?

A. The woman is incapable of producing male children
B. The man’s sperms are very weak
C. The man is not athletic enough
D. The Y component of the men’s sex chromosomes was always involved
E. The X component of the man’s sex chromosomes was always involved

Question 260:

• JAMB 1982

If a 26 year old blind man married a young one-eyed woman and they had four children, how many of them would be blind like there father?

A. All
B. 3
C. 2
D. 1
E. None