(D)an atom can join with other kinds of atoms.
Basically he explained what a molecule is.
Answer:
a identification key
Explanation: because it identifys you
It's G, since plants need carbon dioxide to perform photosynthesis
Both plants and animals are able to do cellular respiration. Plants convert nutrients from the soil into usable energy.
This is the plant cellular respiration formula:
oxygen + glucose -> carbon dioxide + water + heat energy
Hope this helped! Let me know if there is anything I need to clarify or explain more in depth