Natural selection<span> and selective breeding can both cause changes in animals and plants. The </span>difference between<span> the two is that </span>natural selection<span> happens naturally, but selective breeding only occurs when humans intervene. For this reason selective breeding is sometimes called </span>artificial selection<span>.</span>
Essential amino acids are amino acids that must be supplied to one's body by their diet because they cannot be synthesized from scratch.
Answer:
holozoic , saprophytic , parasitic
Transcription is the correct answer
Cell membrane presses against cell wall, but the cell wall is what gives the cell shape