Explain why very small animals are rarely found in polar region.

Very small animals are rarely found in polar regions because

Read the following statements and select the correct option: (a) Very small animals are rarely found in polar regions. (b) Small animals have a larger surface area relative to their volume, they tend to lose body heat very fast when it is cold outside.

Very small size animals are rarely found in'

Assertion : Small sized animals are rarely found in polar regions. Reason : Small sized animals have larger surface area relative to their volume and they have to spend much energy to generate body heat through metabolism.

Heat loss or heat gain is a function of surface area Very ________ animals are rarely found in polar regions.

Assertion:- Very small organisms rarely found in polar regions. Reason:- Small animals have a larger surface area relative to their volume, they tend to lose body heat very fast when it is cold outside.

Explain why ionic solids are more soluble in polar solvents.

Explain why the covalent solids are usually soluble in non-polar solvents but are insoluble in polar solvents.

Explain why lonic reactions are very fast.

Alecithal eggs with very small amount of food reserve are found in : (a) Frog (b) Insects (c) Man (d) Fish