The ribosomes of prokarytoers are of 70 S type ribosomes and while of eukaryotes are of 80 S type as well as 70 S type. Give the composition of 70 S type ribosomes and 80 S type ribosome (two sum units, from each of them are made of)

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?