Direct characterizaation is what the author says about the character.
So B would be correct
Medications can be tested on cell cultures instead of being injected into patients unnecessarily.
Cancer cells continue to grow in the cultures uncontrollably allowing scientists to test multiple medications on the cancer cells.
Answer:
Yes, there could be a fourth statement to cell theory
Answer:
Cryphonectria parasitica is a parasitic fungus of chestnut trees.
Explanation:
this was caused from a great disease that overran the country
