Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
Autotroph..make their own energy. ..heterotroph get energy from other organisms
Answer:
sand goes in S,L
air goes in L,G
Explanation:
hope it helps, have nice day/night
im sorry didnt do all of them it's a little hard for me
L= liquid
S=solid
G=gas