Answer: a compound known as calcium carbonate (CaCO3)
Explanation: Google the question itself
RNA is similar to DNA. In RNA, uracil replaces the thymine. So, the base that is replaced is called the thymine.
Answer:
Humans and honeyguides have a mutualistic relationship, because they both benefit each other. Humans find honey much faster using the birds as guides, and the birds avoid being stung by bees.
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