Answer:
D they join together to create proteins
Answer:
Explanation:
substances that takes part in and undergoes change during a reaction
Animalia with over 1 million species
Answer:
No
Explanation:
Most bacteria and archaea don't use oxygen to produce energy, and live an oxygen-free (anaerobic) existence. Some archaea produce methane as a by-product of their energy production, and are called methanogens.
Hope this helps!