instruction:
In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
question:
Question: Which proteins recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms? Answer: antibodies
answer:
Antibodies recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms.


question:
Question: What kind of hormones are released into the environment for communication between animals of the same species? Answer: pheromones
answer:
Pheromones are released into the environment for communication between animals of the same species.


question:
Question: Which system is capable of responding quickly to changing situations? Answer: nervous system
answer:

Nervous system system is capable of responding quickly to changing situations.