Of the following given choices;
A. a lack of electrolytes in the brain
B. fatty mitochondria
C. two nuclei in some neurons
D. progressive deterioration of the myelin
The answer is D.
Musciplte sclerosis is an autoimmune condition in which the immune system of the subject attacks the nervous system. Specifically, the immune system attacks the myelin sheath of neurons as though they are foreign hence causing them damage. Myelin sheath protects the neurons and also allows impulses to pass along the axon much quicker than it would be without the sheath.
When grapes are soaked in water, the grapes then swell up because grape's cells have a high concentration of solutes in comparison to the water. In other words, grapes have low concentration of solvent (that is water molecules ) in comparison to the concentration of solvent in water. In this situation, there will happen a process known as osmosis in which water molecules moves from a region of concentration of water to a region of low concentration of water through a semipermeable membrane. (the cell membrane of the grape's cell is also semipermeable,which only allows solvent molecules to pass through it)
Damage to cell membrane can also lead to leakage of important cell constituents required for various metabolism of the cell. There can also be imbalance of electrolyte concentration in the cell which could lead to damage of proteins and organelles of the cell.
Answer:
This population of fish is undergoing the process of Genetic diversity
Explanation:
The phenomenon known as Genetic diversity is described as variation that occurs within a species or community. Individual organisms are unique owing to their genetic makeup. Ample variation within a population, or genetically diverse population, allows it to better survive various sorts of stresses from the environment, ensuring better survival of the species.
The proteins on the surface of the virus change quickly and in shape
