Question

Which of the following is an example of circadian rhythm?

• A. Simple reflex
• B. Complex reflex
• C. Fixed action patterns
• D. Behavioral cycles
• E. Environmental rhythms

Answer 1

The correct option is D Behavioral cycles

A biological process displaying an entrainable endogenous oscillation of approximately 24 hours is termed as a circadian rhythm. It is basically an internal clock oscillating at 24 hours. Behavioral cycles tend to repeat themselves after almost 24 hours, hence, they are an example of circadian rhythms.

So, the correct answer is 'Behavioral cycles'.