Answer:anything living that affects another living thing and the environment
Explanation:
Answer:
1. D
3. A
4. C
Explanation:
Those I am positive are correct (:
Some you wouldn't see by stepping outside, but it gives you a general understanding of what you should be looking for.
Hope this helps!
A syndrome that decreases blood flow and affect the coronary nerves
Mistakes in the replication of DNA create cells that become cancerous