Question

define tropical level

Answer 1

tropical levels are the different levels in a food chain.
according to 10℅law 10℅ energy passes from one tropic lvl to another

Answer 2

A trophic level is the group of organisms within an ecosystem which occupy the same level in a food chain.
There are five main trophic levels within a food chain, each of which differs in its nutritional relationship with the primary energy source. The primary energy source in any ecosystem is the Sun (although there are exceptions in deep sea ecosystems).

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