Answer:
keratin
Your nails are made of keratin
Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body.
Explanation:
2 4 and 6 i took the course and that's right
Answer:
I think C
Explanation:
New neurons are born not from mature nerve cells but rather develop from neural stem cells that remain in our brains throughout life. Indeed, in some brain areas, there is continual turnover of neurons - old ones die and new ones are born - and these new neurons can participate in circuits that underlie learning.
Answer:
White
Explanation:
the boiling ethanol dissolves the chlorophyll and removes the green color from the leaf then it turns white
