Answer:
Answer is A signal is sent down an exon within a nerve cell.
Explanation:
Explanation:
Reflexes do slow with age. Physical changes in nerve fibers slow the speed of conduction. And the parts of the brain involved in motor control lose cells over time.
Researchers found that the brain's response time begins to decline at age 24. The descent is a slow, but nonetheless, steady one.
A. instinct.<span>Instinct is the tendency of an animal to exhibit a particular complex behavior.</span>
A. The conditions under which the organism died and how it was buried.
Reason for Answer: This is because fossils are used to determine the relative age of sedimentary rocks and are used to provide information on past climates, environments, and many more.
There are 4 valence electrons
