Answer:
Yes, they should have license.
Explanation:
License is to authorize the use of something.
1) macrophages
2) lymph nodes
3) thymus
4) bone narrow
Answer:
Food and Drug Administration
Explanation:
The CDC deals with disease control and outbreaks, and the Environmental one deals with the environment and how our actions affect it. The only one that logically makes sense (and is related to food) is the FDA.
