Ralph is looking at a blood vessel under a microscope as part of his study about the cardiovascular system. He notices that the
vessel contains blood and has valves. What is the blood vessel that he is observing?
2 answers:
Answer:
the person is correct its VEINS
Explanation:
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<span>I'm pretty sure the answer is: Belostoma sp
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Answer:
metabolism, fertility, mode of reproduction, behaviour, learning and mental ability.
Explanation:
<span>The nucleus and ribosomes have a role in the creation of proteins.</span>
They are both digested in the intestine, if that if what you needed
What are the vocab words?
