Name the following: A. The region of the axis between the point of the attachment of the cotyledons and the plumule. B. The undigested cellulose which is fibrous in nature. C. A vaccine for Poliomyelitis D. A large hole at the back of the cranium through which the spinal cord passes. E. A serious food poisoning disease caused due to bacteria in canned foods.

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?