DNA is an identifier, I'm not exactly sure how to answer this.
Answer:
The second on is the one that fits.
Explanation:
All enzymes break their substrates (polymers) into smaller and less complex molecules (monomers) using the ‘lock and key method’, so this means that all enzymes must be in an equipped shape in order to fit their substrate and break them
Answer:
Electrons
Explanation:
electrons, move around the nucleus
and electrons have a negative electrical charge.
Animals obtain food through other plants or animals.
