I believe the answer is Myelin sheath. Myelin is a fatty substance that surrounds the axon of some nerve cells (neurons), forming an electrically insulating layer. It is essential for the proper functioning of the nervous system. It is an outgrowth of a type of glial cell, produced by the process called myelination or myelinogenesis.
Answer:
Tectonic Plate Map. The movement of Earth's tectonic plates shape the planet's surface. Plate boundaries are important because they are often associated with earthquakes and volcanoes. When Earth's tectonic plates grind past one another, enormous amounts of energy can be released in the form of earthquakes.
Explanation:
nice pfp
H is grana, i is ATP, J is Calvin cycle, A is sugar, e is electron transport chain, c is Krebs cycle,
I fell like its A but it could also be C try one hope this helps