I believe the universe is 13.8 billion years old. Possibly longer, or possibly shorter. Correct me if I'm wrong.
Chemicals produced by bacteria that limit the growth of other bacteria are called antibiotics.
Answer:
E.All chordates have ventral l, hollow nerve cord
D.All chordates are bilaterally symmetrical animals
Plasmids, they are rings of DNA often used in procedures like insulin production and cloning
Answer:
Cellular respiration is called an aerobic process because it requires oxygen and carbon dioxide.
Explanation:
