How are they alike and how are they different.

Take at least 4 of the following points into consideration:

1. Length of time for protection against pathogens
2. Time taken for cells/barriers to exert their effects on pathogens
3. Renewal of defence structures by the body (e.g. cells, barriers)
4. Effect of age on defence systems
5. Movements of cells involved in defence

How are nonspecific immune defences and specific immune defences alike and how are they different?

THANK YOU!

Cells, Defence Systems, Immune Defences, Length Of Time