The two most important environmental factors affecting animals are biotic and abiotic.
What is the Environment?
The environment may be defined as anything which is present in the surrounding of a living organism. The term environment was given by Carlyle.
Biotic factors include producers which are autotrophic in nature. Herbivores, Carnivores, omnivores, decomposers, parasites, etc.
Abiotic factors are generally long-lasting environmental conditions such as temperature, light, rain, fire, winds, etc., and topographic factors like mountains, hills, plains, desert, etc.
Therefore, the two most important environmental factors affecting animals are biotic and abiotic.
To learn more about Abiotic factors, refer to the link:
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