Passage cells are thin-walled cells found in A. Phloem elements to serve as entry points. B. Testa of seeds for the emergence of embryonal axis C. The central area of style for passage of pollen D. Endodermis of root to facilitate rapid transport of water from cortex to pericycle.

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?