Respiration is an essential life process providing the living cells with
oxygen
sugars
energy
carbon dioxide
Correct answer is C
No explanation has been provided for this answer.
The hereditary material in a living organism is located inside the
protein wall
cytoplasm
nucleus
lysosome
Correct answer is C
No explanation has been provided for this answer.
Which of the following is an effect of carbon monoxide on man?
irritating the skin
Reducing oxygen carrying capacity of blood
Causing gene mutation
Destroying white blood cells
Correct answer is B
No explanation has been provided for this answer.
During prolonged exercises, glucose in the muscle is convened to
pyruvic acid
lactic acid
co- enzyme
ethanol
Correct answer is B
No explanation has been provided for this answer.
The transfer of ripe pollen grains from the anther to the stigma of the same flower is termed
fertilization
self-pollination
reproduction
conjugation
Correct answer is B
No explanation has been provided for this answer.