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The selective pairing of adenine (A) with thymine (T) and guanine (G) with cytosine (C) is based on the number of hydrogen bonds established between one of the purine bases and the one pyrimidine bases
16.They are competing for enough space,nutrition and sunlight.
17.The grass won't grow because of many shaded areas that will be created by lots of trees together.
Answer:
No
Explanation:
The bottle still has air inside it
