Which of the Following Is NOT an Echinoderm

question 42

Multiple Choice

Which of the following is NOT an echinoderm?

• A)sea star
• B)sea urchin
• C)sea cucumber
• D)sand dollar
• E)crayfish

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Definitions:

B Cells

A type of white blood cell that plays a significant role in the adaptive immune system by producing antibodies to defend against pathogens.

Plasma Cells

A type of white blood cell that produces and secretes large volumes of antibodies, playing a crucial role in the body's immune response.

T Cells

A type of white blood cell that plays a central role in cell-mediated immunity.

Thymus

A primary lymphoid organ located in the chest, where T cells mature and differentiate.