Answer:
D. A signal is sent down an exon within a nerve cell
Explanation:
I believe it is the sagittal plane
The radiometric dating was off due to loss of daughter isotopes.
Active muscles demand huge amounts of oxygen, and the circulatory system works hard to provide it. Blood carries oxygen to the muscles. When the body is at rest, blood carries nutrients to the muscles so that they can repair and rebuild themselves. Blood also carries away the waste products that hard-working muscles produce, back out through the lungs to be filtered.
so they Circulatory system xx muscular system :)
It was said that a few red dwarfs which were created after the big bang are still existing and is hypothesized to continue to live for years approximately 26
