They can enter your blood stream (via breathing/ingesting) and once in your bloodstream they can enter cells and mutate your dna, which can cause cancer/birth defects/ reproductive harm
They prove that it is impossible for all scientists to accept the same theory.
Scientists are always coming up with new theories, and there will always be people out there to disagree with them.
Answer:
MRCORRECT has answered the question
Explanation:
D)chloroplast
They can cause changes in a certain cell that can cause the growth or death in a cell.
