Answer:
it affects the hardness of the shells because calcium has a high reactivity which causes the shell to be hard
Explanation:
Phosphate is not part of a molecule of dna
This would be a relation ship of either mutualism or symbiosis
The right answer is: neutral mutation.
Neutral mutation is a nucleotide change in the DNA of the leading to the replacement of one amino acid by another amino acid possessing the same physicochemical properties.
example: AAA to AGA (Lysine to Arginine).
both these two amino acids are positively charged, so the charge of the protein will not change
The grass would probably not live!