Answer:
immune system
Explanation:
The adaptive immune system reacts specifically to pathogens (germs). It is able to recognize attacking pathogens and fights against certain antigens or foreign substances. The next time a known antigen is encountered, the adaptive immune system can respond faster.
A night person is more active and awake at night whilst a morning person is the opposite.
Answer:
The cell has to undergo a process called Osmosis
Answer:
Well I need more information to answer that question.
Explanation: