Water retention is highest in soils which are rich in
Water retention is highest in soils which are rich in A. sand, poor in humus and devoid of…
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Which of the following is NOT caused by bacteria?
Which of the following is NOT caused by bacteria? A. Cholera B. Gonorrhoea C. Tuberculosis D. Onchoceriasis E.…
Tsetse fly is harmful to man because it is associated with the spread of
Tsetse fly is harmful to man because it is associated with the spread of A. river blindness B.…
A relationship between living organisms which is of mutual benefit is
A relationship between living organisms which is of mutual benefit is A. parasitism B. saprophtism C. ecosystem D.…
Which of the following food chains is in the correct sequence?
Which of the following food chains is in the correct sequence? A. Weeds → Tadpole → Beetles →…
The primary and secondary hosts respectively of bilharzia are
The primary and secondary hosts respectively of bilharzia are A. fish and man B. man and dog C.…
An old man is likely to be long-sighted because age affects the
An old man is likely to be long-sighted because age affects the A. optic nerves B. retina C.…
In mammals, stimulus is transferred from the receptor muscles to the central nervous system through…
In mammals, stimulus is transferred from the receptor muscles to the central nervous system through the A. motor…
Germination which results in the cotyledons being brought above ground is called
Germination which results in the cotyledons being brought above ground is called A. hypocotyl B. epicotyl C. epigeal…
The mammalian endocrine system is responsible for
The mammalian endocrine system is responsible for A. transmitting impulse B. regulating body temperature C. regulating osmotic pressure…