What set of diseases is spread mainly by insect vectors?
Cholera, tenia, and ghonorrhoea
Poliomyelitis, tuberculosis, and syphilis
Cholera, malaria, and tuberculosis
Malaria, cholera, and river blindness
Correct answer is D
No explanation has been provided for this answer.
Physiological adaptation to very dry condition in animals is called
hibernation
aestivation
rejuvenation
xeromorphism
Correct answer is B
No explanation has been provided for this answer.
5 → 4 → 1 → 3 → 2
1 → 2 → 3 → 4 → 5
2 → 1 → 3 → 4 → 5
2 → 3 →1 → 5 →4
2 → 3 → 1 → 4 → 5
Correct answer is E
No explanation has been provided for this answer.
The salinity of a brackish enviroment
increases immediately after rain
increases at the end of rainy season
Decreases with increase in microorganisms
increases during dry season
Correct answer is D
No explanation has been provided for this answer.
Which of the following is NOT a characteristic of monocot plants?
Occurrence of secondary thickening
Parallel venation
Scattered vascular bundles
Floral parts arranged in threes
Perianth is usually insignificant
Correct answer is A
No explanation has been provided for this answer.