I believe the answer would be stimulants.
Answer:
Targeted exercise should improve the performance of a certain task. Repetition of specific exercises will help improve the given task.
Answer:
Memory cell
Explanation:
Memory cells are long-lived immune cell that can recognize a foreign particle that it previously encountered and consequently fight it by providing or building a faster and stronger response for the immune system.
The memory cells don't respond immediately when it recognizes the foreign particle, but, provides a faster response when it encounters the particle subsequently.
The memory cells are long lived immune cells which means they can live in a system for a vey long period.
There are 2 types of memory cells
Memory B cells and memory T cells.
