Question

If a harmful chemical enters a food chain comprising snakes. hawks. mice and plants.

which of these organisms is likely to have maximum concentration of the harmful chemicals in its body?
which of these organism is likely to have maximum energy available ?
why a food chain shouldn't be of more than five tropic level?
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Answer 1

Epithelial tissues

They form the covering of the external surfaces, internal cavities and organs of the animal body.

Epithelial tissue cells are tightly packed and form a continuous sheet.

The skin, the lining of the mouth, the lining of blood vessels, lung alveoli and kidney tubules are all made of epithelial tissue.