Answer: A. virus strains multiplied in cell cultures
Energy is the ability to do work. The form of energy that living things need for these processes is chemical energy, and it comes from food. Autotrophs make their own food. Heterotrophs obtain food by eating other organisms. Organisms mainly use the molecules glucose and ATP for energy.
Explanation:i hope this is correct
Answer:
A
Explanation:
1 parent cell - 2 genetically identical offspring cells
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Don't trust me on this one, but i'll say d.
