The answer is B because the humoral immune response is mediated by antibody
1. B 2. C 3.A 4. A molecule is when two or more atoms join together. An element makes up the atoms that form molecules. 5. Similarities include both are cells and each cell are surrounded by cell membranes. 6.A fish is an organism and a rock is not because fish contain the characteristics needed for life, while a rock does not.
Answer:
b. amount of energy available as fuel for the body
The surviving R strain transformed into a living S strain.