Answer:
Muscle tissue would break down to supply amino acids.
(D)an atom can join with other kinds of atoms.
Basically he explained what a molecule is.
Yes\.............................................
Answer:
Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.
