The Green Glands Form an Effective "Flood Control" Device in the Freshwater

question 42

Multiple Choice

The green glands form an effective "flood control" device in the freshwater crayfish by

• A)forming a dilute,low-salt urine to unload the water that diffuses into the crayfish body.
• B)forming a high-salt urine to unload the high salt built up in the crayfish body.
• C)keeping the urine isosmotic to the blood.
• D)keeping the interior hemocoel dry.
• E)producing extra sodium and chloride ions to maintain the ionic balance.