Draw the diagram of the sectional view of the human heart and label the following parts. A) The chambers of the heart that pumps out deoxygenated blood. B) The blood vessel that receives deoxygenated blood from the other parts of the body C) The blood vessel that carries away oxygenated blood from the heart. D) Part which prevents the backflow of blood

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?