Answer:
So that the heart can pump oxygen to our brain and to our entire body. Blood also has nutrients that helps our body keep on working. White blood cells help fight diseases and infections that are harmful to the human
Explanation:
Answer:plasma membrane
Explanation:its fluid is of lipid bilayer protein components embedded in it.
Answer:
im not really sure but i think its a codon , a codon is formed when nitrogeneous bases code for one amino acid
Cardiovascular<span> exercise helps the heart </span>become bigger<span> and stronger</span><span>, allowing more blood to be pumped out with each beat.</span>
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