'To build tissue, the body needs 20 different ones of these "protein building blocks", both "essential" & "nonessential"'
amino acids
BIOLOGY: To build tissue, the body needs 20 different ones of these protein building blocks, both essential & nonessential
To build tissue, the body needs 20 different ones of these "protein building blocks", both "essential" & "nonessential"
To build tissue, the body needs 20 different ones of these "protein building blocks", both "essential" & "nonessential"
BIOLOGY
amino acids
BIOLOGY