Answer:
1. Helper T cell is one of the T cells that absence results in no immune response.
2. Cytotoxic T cell is also a type of white blood cell that Kills cancer cells and virus infected body cells.
3. Regulatory T cell is a suppressor T cells that slows or stops the immune response.
4. Memory cell is a type of B cell that enables quick and efficient response to secondary exposure to antigen
5. B cell is a cell that forms antibody producing cells
The temperature increases due to CO2. Hence global warming is caused by CO2.
Because that's the only way they can
Answer:
It does not matter where the sample of water came from or how it was prepared. Its composition, like that of every other compound, is fixed.
