So its acquired immunity and the cells responsible are the B lymphocytes that produces antibodies against the virus. Memory is keep since first encounter of the virus by the immune system by way of the antibodies that was initially produced. The antibodies are there already, which makes it fast to act upon when expose again.
Essential amino acids differ from non-essential amino acids because essential amino acids cannot be made by the body, but instead, you must get them from your diet (your eating habits). On the other hand, non-essential amino acids are created by the body. You need both amino acids in order for the body to build the wide variety of proteins it needs to survive. Hope this helped and have a great day!
How badly the person is injured (how deep the cut or how bad the tear) and their body type.
Answer:
Find good hobbies and organize your time wisely
Explanation:
1. Finiding a good hobby like listening to music, reading a book and more is scientifically proven to reduce stress and improve cognitive performance during tasks and work
2. Organizing your schedule is important as you generally dont want to cramp all of your tasks together so you have to finish them all at once. Try to do one assignment/task for an hour or so, take a break for 5 or 10 minutes, then keep going!