I think the correct answer is C. Hope this helps.
The amount<span> of guanine </span>always equals the amount of cytosine<span>.
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The answer is d. pheromones.
Out of the following choices given, the true statement about diffusion is molecules move from areas of high concentration to areas of low concentration. The correct answer will be D.
Haploid chromosome number in humans is 23
In short, Your Answer would be 23
Hope this helps!