Answer:
Cuz caregiver can take care of what they need there self
Explanation:
Answer:
antibodies
Explanation:
The third line of defense is specific resistance. This system relies on antigens, which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produce an immune response. The term "antigen" comes from ANTI-body GENerating substances.
Answer:
It is most likely going to be C. Susan is on a fixed-ratio schedule of reinforcement.
Explanation:
