Answer
hey sorry i dont know the answer but i was wondering if u found it because im taking the test right now and i dont know it sorry.
Explanation:
A vaccination can produce immunity to smallpox
Answer:
Stress occurs when the body physically sustains grave injury due to environmental factors.
The answer is D. The presence of oncogenes
Oncogenes is a gene that has potential to cause Cancer. Once it appear on tumor cells, Oncogenes often mutated at a very high level. When the cells critical function altered, they usually undergo a rapid cell death. But once oncogenes activated, those malfunction cells will not undergo rapid cell death, filling our body with malfunctioning cells
Answer:
D.
Explanation:
A. just isn't true. B. isn't true either because, like bacteria, we are adapting to their changes. C. isn't right either because some bacteria helps us survive. D. is the only true statement.
