Water cycles through organisms and rivers.
Answer:
Viruses cannot reproduce on their own, but inject their DNA into living cells in order to make copies of themselves.
Explanation:
A virus cannot reproduce itself outside the host because it lacks the complicated machinery that a [host] cell possesses.
In a eukaryotic cell<span>, </span>transcription occurs<span> in the nucleus, and translation </span>occurs<span> in the cytoplasm.</span>
They can create competition within a certain niche
