Muscle Cells are known to have the greatest number of mitochondria.
The Silurian period occurred before the Neogene period.
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Circulatory system
The circulatory system is the transport system for endocrine information. While the nervous system uses neurons, the endocrine chemicals and hormones must circulate through the body via blood vessels. Many glands in your body secrete hormones into the blood.
Answer:
b)It is a compound because it is made of a single kind of molecule.
Explanation:
