Question

Sinking of zooplankton during day
time and rising to the surface at
night time is an example of
(A) Circadian rhythms
(B) Circalunar rhythms
(C) Circannual rhythms
(D) Salinity adaptation​

Answer 1

Answer:

$\huge\bold\pink{ANSWER :-}$

(A) Circadian rhythms

• Circadian rhythm or diurnal rhythm is any 24 hour periodicity in the behaviour or physiology of animals or plants .Examples are sleep /activity cycle in many animals and the growth movements of plants. Circadian rhythms are generally controlled by biological clocks.

Answer 2

Answer:

Circadian Rhythms

Explanation

the periodicity of behaviour of animals

Hope it helps you!