Answer:
2. Stimulating antibody production.
Explanation:
It's C! It changes as new evidence is found.
Answer:
because people where not alive yet oontill cenoznic era
Explanation:
A, bacterial conjugation
Explanation:
I think it's this because in step 4, the things under the oval-ish circle looks like bacteria
Answer:
two hydrogen atom
Explanation:
Sulfuric Acid, H2SO4 is a chemical compound made up of two hydrogen atom, one sulfer atom, and four oxygen atoms.
