The relationship is highly complex.
Each organism’s environment consists of other organisms as well.
An organism cannot survive without interacting with other organisms.
Everything which is needed for our survival or interaction forms part of environment.
Environment is dynamic and not static.
For example – environment of a fish in pond.
Abiotic components – temperature, light, water with nutrients rich, oxygen dissolved.
Biotic components – Planktons, aquatic plants and animals.
TRICK of Biotic-
Non Green Plants
Ex- External environment of Fish
Outer body surface
Stable than external environment but not absolutely constant. Injury etc. upsets the internal environment.
If a marine fish is transferred to fresh water environment, it will not be able to survive.
Ex- Internal environment of Fish
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