Metanephridial Organs Are Common in

question 75

Multiple Choice

Metanephridial organs are common in

• A) mollusks.
• B) flatworms.
• C) cnidarians.
• D) sponges.
• E) insects.

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Definitions:

Immune System Organs

Organs involved in the body's defense against pathogens, including the thymus, spleen, lymph nodes, and bone marrow.

Liver

The largest gland in the body; it aids digestion by producing bile, regulates organic components of the blood, and acts as a detoxifier of blood.

Thymus

An organ located near the heart that secretes thymosin and thus processes and activates T-cells.

Allergic Reactions

Adverse and sometimes severe responses of the immune system to foreign substances, such as certain foods, pollen, or medications.