Flowers and their insect pollinators are a classic example of coevolutionnnn
The answer is A. ecology
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The answer is B which is "<span>All carry blood away from the heart."
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The walls of the arteries vs veins have different thickness in each is that <span>tunica media is thicker than the tunica externa in arteries and that the opposite is true in veins (tunica externa is thicker than the tunica media)</span>
"<span>Covered with an enormous sheet of ice" would most likely match Europe, although it should be noted that this was a while ago and changes with time. </span>
Answer:
The nucleus regulates the synthesis of proteins in the cytoplasm through the use of messenger RNA (mRNA). Messenger RNA is a transcribed DNA segment that serves as a template for protein production. It is produced in the nucleus and travels to the cytoplasm through the nuclear pores of the nuclear envelope, which you'll read about below. Once in the cytoplasm, ribosomes and another RNA molecule called transfer RNA work together to translate mRNA in order to produce proteins.
