Phylum Platyhelminthes Is Characterized by All of the Following Except

question 35

Multiple Choice

Phylum Platyhelminthes is characterized by all of the following except

• A)bilateral symmetry.
• B)solid bodies with an inner digestive cavity.
• C)flat ribbon-shaped bodies with dorso-ventral parts and anterior head.
• D)all are free-living.
• E)possess an excretory system.

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Definitions:

Infected Tissues

Body tissues that have been invaded by pathogenic microorganisms, leading to disease or inflammation.

Neutrophil

Type of white blood cell; small phagocytic white blood cell with a lobed nucleus and small granules in the cytoplasm.

Natural Killer Cells

A type of lymphocyte that plays a major role in the rejection of tumors and cells infected by viruses by directly killing them.

Eosinophils

A type of white blood cell that is involved in combating multicellular parasites and certain infections in vertebrates, also associated with allergic reactions.