Answer:
active transport
Explanation:
it involves movement of ions
The myelin sheath covers most of the axon. It is important because it helps to protect the axon and speed up the neuron firing process by decreasing the amount of time in the axon.
Answer:
As a result of photosynthesis oxygen and sugar
Answer:
3. Pathology
4. HCN
Explanation:
Pathology is the study of the nature and causes of diseases.