Environment, predators, and natural selection.
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Answer: can i pls get brainliest
i believe its river
Explanation:
A watershed is land that contributes water to a stream, river, lake, pond, wetland or other body of water. The boundary that separates one watershed from another, causing falling rain or melting snow or spring water to flow downhill in one direction or the other, is known as a “watershed divide”.
Description 2 describes a commensal symbiosis. The answer is D, commensalism.
Properties of a pure substance are constant because the structure of the pure substance is not varying.
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