Answer:
b.
Explanation:
The brain is an organ with no actual muscle except for the muscle tissue in the middle layer of the arteries that carry blood of the brain
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The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond.
Embryonic stem cells can become all cell types of the body because they are pluripotent<span>. Adult stem cells are thought to be limited to differentiating into different cell types of their tissue of origin. Embryonic stem cells can be grown relatively easily in culture.</span>
I think the correct answer from the choices listed above is option B. The geologic time scale originally ordered earth's rocks by relative age. The principle is that in a sequence of undeformed sedimentary rocks the oldest beds are at the bottom and the youngest ones are at the top.
