Answer:
Effective food supply was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II.
Explanation:
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Answer: Hydrophobic, Hydrophilic (Option 2)</h3>
Explanation:
The tails of the cell membrane are __hydrophobic__ while the phosphate heads are __hydrophilic__.
I hope the following image helps to further explain the answer.
Animal cells do not have a cell wall or chloroplasts but plant cells do. This is just one example there are several ways. <span />