Refer to the following partial ANOVA results from Excel (some information is missing) . 
The sample size is:
Definitions:
Memory Cells
Immune cells that remember past infections, allowing the body to respond more swiftly to similar future threats.
Natural Killer Cells
Immune cells that play a crucial role in the destruction of infected or cancerous cells without prior sensitization.
Specific Antigen
A particular substance that the immune system recognizes and responds to, often triggering an immune response.
Pathogens
Microorganisms or viruses that can cause disease in their host, including bacteria, viruses, fungi, and parasites.
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