Circinate Vernation in ferns refers to A. Uncoiling of new leaves from the base towards the apex B. System of leaf gaps in the stems C. Arrangement of son on the leaf surface D. Presence of adventitious root on the rhizome

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?