Answer:
D- all. .
Explanation:
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Answer:
veins because they carry low pressured blood due to which there is more chance for backward flow of blood and to prevent that they contain valves.
<em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em> </em><em>uh</em><em>.</em><em>.</em>
It has something to do with DNA strands
Answer:
cow milk can be very fatty
Explanation:
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Iron, Oxygen,and Silicon. All three of these substances are found in the mantle and crust.