The pupil becomes bigger to allow more light during dark by the

The site of perception of light/dark duration are the

The site of perception of light/dark duration are the

Dinoflagellates glow during dark because :-

Dandelion flowers open the petals in bright light during the daytime but close the petals in dark at night. This response of dandelion flowers to light is called:

Hormone produced more in dark is

Hormone produced more in dark is

Dark reaction in photosynthesis is called so because (A) It can occur in dark alone (B) It does not require direct light energy (C) It cannot occur during day time (D) It occurs more rapidly at night