Answer:
<em>When a baby is born, the zygote has become about </em><em><u>26 </u></em><em>billion cells</em>
Explanation:
Cell: Cell is defined as the structural and functional unit of living thing. I.e The cell is the simplest and the basic unit of life. All living things are made of cell.
Zygote: A zygote is a single cell formed from the union of a male cell called sperm and a female cell called egg.
<em>When a baby is born, the zygote has become about </em><em><u>26 </u></em><em>billion cells</em>
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B is the correct answer because all the classes are hierarchy’s in a sense
<span>Akathisia is the inability to sit still. People will tend to be uneasy and want to be doing something. They'll be fidgety, looking for something to do with their hands, or be looking to get up and walk around.</span>
They help pump blood at a greater distance than Atria can.