Figure 48-2
Use the figure to answer the corresponding question(s) . 
-In a marine environment, what is the function of the structure on Figure 48-2 labeled A?
Definitions:
B Cells
A type of white blood cell that plays a key role in the immune response by producing antibodies to neutralize pathogens.
Red Blood Cell
A cell that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.
Abbreviation
An abbreviation is a shortened form of a word or phrase used to save space or avoid repetition.
Immune Response
The body's defense mechanism against foreign substances, involving both specific and non-specific components.
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