How is the small intestine designed to absorb digested food? A) Lined by epithelium, which is specialized to absorb. B) Villi are transverse folds of the intestinal wall that increase surface area of absorption. C) Villi possesses blood capillaries and lacteal (lymph vessels) for quick transport of absorbed food. D) All of the above.

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?