The Most Accurate Explanation of the Management of Nitrogenous Wastes

question 24

Multiple Choice

The most accurate explanation of the management of nitrogenous wastes and ion balance in the crayfish is

• A) the nitrogenous waste of crustaceans is excreted by the green glands and ion diffusion takes place by diffusion across thin areas of cuticle and the gills.
• B) both ion balance and elimination of nitrogenous wastes is managed by the green glands.
• C) hydrostatic pressure in the green glands forces fluid into the hemocoel and both ions, and nitrogenous wastes diffuse across thin areas of cuticle and the gills.
• D) None of the choices are correct.
• E) the nitrogenous waste of crustaceans is excreted by diffusion across thin areas of cuticle and the gills, while the so-called excretory organs regulate ion composition of the hemolymph.

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Definitions:

Dehiscence

The splitting or bursting open of a wound or surgical incision, often a complication after surgery.

Granulation Tissue

New vascular tissue formed on the surface of a wound during the healing process.

Ischial Wound

An injury or ulceration which occurs on the ischium, part of the pelvis, often resulting from prolonged pressure.

Epidermis

The outermost layer of skin, serving as the body's primary barrier against environmental damage and pathogens.