Answer: Option E.
glycosaminoglycans
Explanation:
Proteoglycans are core proteins that are attached to glycosaminoglycans chains via covalent bond because
glycosaminoglycans consist of repeating disaccharide units composed of an N-acetylated or N-sulfated hexosamine and either a uronic acid or galactose . They are found in connective tissues and cell matrix of animal cells.
Answer:
C
Explanation:
lol it says it in the question which ones are correct
A neutron is one of the three subatomic particles, between electrons and protons it has no charge since it is neutral.
About 1 billion according to the photo
Answer:
Either c or d
Explanation:
Apologies if I'm incorrect, I'm no expert, but let me know if it's wrong I'll take it down.
