How do you get the amino acids your body uses to make proteins 

Eating such things as eggs, animal meat.

Explanation:

It is broken down into amino acids and used to build muscle with the protein.

d. making up measurements to record.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.