Answer:
I cant understand this question. Can u help?
Explanation:
I think d all of the above
Valine, Leucine & Isoleucine
Alanine
Arginine
Glutamine
Lysine
Aspartic acid
Glutamic Acid
Proline
Cysteine
Threonine
Methionine
Histidine
Phenylalanine
Tyrosine
Tryptophan
Asparagine
Glycine
Serine
A physical property is an aspect of matter that can be observed or measured without changing it. A chemical property may only be observed by changing the chemical identity of a substance.