Respuesta :
Answer:
9
Explanation:
The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.thx.
Answer:
8
Explanation:
histidine
lsoleucine
lysine
methionine
phenylalanine
threonin
tryptophan