A) biome
Explanation - Biome is the ecological area where flora and fauna adapts themselves according to the environment or niche they are living in. An ecosystem is a group of living beings alongside the nonliving things of their condition, communicating as a framework.
Community is a group of organisms that interact with each other and carry out their work accordingly. Organism describes a particular being of a species. Therefore, Biome best suits the options given in the question.
To classify animals and distinguish them
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C looked it up on google yw
The chemical change that occurs in the leaves of green plants. It uses light energy to convert carbon dioxide and water into glucose. Oxygen is produced as a by-product of photosynthesis
I believe the best answer for this is B. The variety of ecosystems found on the islands.