The right answer is myelin.
Vitamin B12, also called cobalamin is a vitamin B group, so it is water soluble. It is a very important vitamin for the functioning of the brain, the nervous system and in the synthesis of DNA. This vitamin must be provided by the diet, the populations most at risk of deficiency are vegans as well as the elderly because of their low consumption of food of animal origin.
Vitamin B12 is essential for the good health of the nervous system: It is particularly at the level of the myelin sheath that vitamin B12 plays a role in thus participating in the protection of nerve cells.
CAU-CGC and more is the answer
Answer:
B) The first shell only holds 2 electrons so the 3rd electron had to go in the second shell.
Explanation:
Electrons fill up from smallest to largest, the first electron shell only holds 2 electrons, so the remaining electron had to go to the second shell.
A: the F1 generation
Parental cross:: WWDD x wwdd
Possible Gametes for each parent: WD& wd
B: The F2 generation
F1 cross WwDd x WwDd
Possible Gammetes for each parent: WD, Wd,wD, or wd
