Answer:
X represents ATP (Adenosine TrisPhosphate) or simply put Energy.
A.Osmosis occurs through a semi permeable membrane. Diffusion occurs in permeable membrane.
Answer:
Its width.
Explanation:
The size of pyrimidines and purine is different because each group has a different structure (1 or two rings). Therefore, the width of DNA is "constant".
If we would pair two pyrimidines or two purines, the width of DNA would be different in both cases.
Hope this will help :)
Magma-
<span>The molten mixture of rock-forming substances, gases, and water from the mantle. This is making me type at least 20 characters for no reason. Anyways here is you answer i hope this helps
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