Answer:
A
Explanation:
A is adaptations, not natural selection
In the Grand Canyon, there are clear horizontal layers of different rocks that provide information about where, when, and how they were deposited, long before the canyon was even carved.
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Formula mass of NaCl = 58.5g
0.4 x 58.5 = 23.4
She should bring approximately 23.4 grams.
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Answer:
When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it Answer:active transport
Answer:
C
Explanation:
it is chemical, not physical
