(a) What will happen to guard cells and the stomatal pore when water flows into guard cells. (b) How do plants transmit information from cell to cell?
Updated 1/12/2026
In a food chain comprising frogs, insects, birds and grass, which one of the organisms is likely to have maximum concentration of harmful non-biodegradable chemicals in the body.
Updated 1/12/2026
(a) Write foil form of DNA. (b) Why are variations essential for the species ? (CCE 2011)
Updated 1/12/2026
What is geographical isolation? (b) Illustrate formation of a species with the help of an example where individuals are very different from each other and are capable of reproduction among themselves.
Updated 1/12/2026
What is ozone? How does it protect the organisms on the earth?
Updated 1/12/2026
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