The answer I’m presuming is a one word, I believe the term you seek is beach?
Some causes could be the mother smoking, drinking, doing drugs etc. Or even simply her body doesn’t fully accept the baby growing inside her so it acts out against it. Sounds strange but it happens. Also if the mother is sick with Zika or another virus, it can harm the baby’s growth.
Answer:
If this is supposed to be an essay, do some reaseach...
Explanation:
The red blood cells able to move through narrow vessels to carry oxygen throughout a multicellular organism because they are small because they lack a nucleus. Option D
<h3>What are red blood cells?</h3>
The red blood cells are the ones that carry hemoglobin that is responsible for the transport of oxygen in the body. Now we know that the blood is responsible for the supply of oxygen across the body and this is why the red blood cells are important.
Thus, the red blood cells able to move through narrow vessels to carry oxygen throughout a multicellular organism because they are small because they lack a nucleus.
Learn more about red blood cells:brainly.com/question/17247203
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