The correct answer is "C".
Onion cell is a plant cell and human cheek cell is an animal cell. Hence, onion cell has a cell wall<span> but not in human cheek cells because animal cells do not have cell wall. Both cells have single nucleus. Since, human cheek cell is an animal cell, chloroplasts are cannot be seen in the human cheek cells.</span>
X: Ozone layer destruction
Y: Mass extinction
The answer is
ocular lens
Stage
Objective lens
Focusing le s
Answer:
competition occurs when living organisms, including animals, plants, bacteria and fungi, need the same limited resources to thrive in their shared environment.
Explanation:
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