Answer:
The answer is the Immune system (a).
Explanation:
The immune system consists of agents that help your body fight against pathogens and other invading substances. It has your white blood cells, enzymes, mucus, hydrochloric acid (in your stomach), and even your saliva. All these substances help make sure your body is rid of anything that may bring harm to you!
What are the signs of physical abuse? - Burns, bruises and fractures that are not accidental. What are some behavioral indicators of physical abuse? - Extreme aggression, withdrawal, seductive behaviors, being uncomfortable with physical contact or closeness.
Answer:
They must be cooled, wrapped in plastic or put into clean containers, and labeled.
Explanation: