Answer:
Increase
Explanation:
It helps you to se better.
Answer:
Myelin sheath
Explanation:
Myelin sheath cover the axon of neurons and act as insulator for the faster transmission of signals.
Each axon is covered by multiple myelin sheaths and the gap between myelin sheath are known as Nodes of Ranvier.
In CNS myelin sheath is composed of glial cell called as oligodendrocytes and in PNS the myelin sheath is composed of Sachwann cells (glial cells).
Answer:
If a paramecium did not have a contractile vacuole or it did not work it would fill with water and lyse.
Explanation:
DNA is very good at replicating itself.