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Diano4ka-milaya [45]
4 years ago
12

Which cells activate helper T-cells by antigen presentation?

Biology
1 answer:
quester [9]4 years ago
6 0
C. Macrophages

When Macrophages approach a foreign pathogen they ingest the pathogens through phagocytosis, the Macrophages show the foreign antigen proteins on their cell surfaces.

The Helper T Cell recognizes the antigen on the surface of the macrophage and starts an immune response to the invading pathogen by sending out a chemical message

 After that the B-cells produce antibodies that are specific to the antigens of the pathogens that slow them down so the macrophages can engulf them.

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Answer:

Manipulated variable

Explanation:

Manipulated variable - The factors that are purposely changed in the experiment

Responding variable - The factor that changes due to the manipulated variable

Fixed variable - Other factors that are kept constant throughout the experiment

Hope this is correct and helpful

HAVE A GOOD DAY!

3 0
3 years ago
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tankabanditka [31]

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Tanya [424]

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4 years ago
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Explanation:

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