Answer:
D. Number of individuals in a specie
Step By Step Explanation:
Answer:
Myelination
Explanation:
The covering of myelin around the axons is called the myelin sheath. This myelin sheath helps in transfer of information faster and also in complex processes of the brain. The process of myelination begins in the PNS (peripheral nervous system).
The myelinated section are seperated from each other with a gap called nodes of ranvier. Glial cells (oligodendrocytes) forms the myelin sheath in the central nervous system and schwann cells (glial cells) forms the myelin sheath in peripheral nervous system. The propagation of electrical impulse in the myelinated fibers is by saltatory conduction that is from one node to another.
Because you might have just done something different with the experiment and messed up someway during the test
When your body temperature is too high your blood vessels will dilate then your sweat glands secrete fluid and the heat is lost from the body.. there for without sweat you would “heat to death”
