Answer:A weak immune system
Explanation:
When people get older their immune system becomes weak including the function of the T cells which are cells responsible for fighting infections.
This means it becomes hard to recover from a flue when someone get sick and they are always prone to sickness since their immune system no longer has the power to fight infections.
Answer:Jay Treaty, (November 19, 1794), agreement that assuaged antagonisms between the United States and Great Britain, established a base upon which America could build a sound national economy, and assured its commercial prosperity.
Explanation:
Same bro not here for points
Answer:
D is the answer. If this answer is wrong then tell me and I will remove this answer.
Explanation:
Most animals protect there home from other animals.
Human activities contribute change- by change in the earths surface