Unlike bony fish in the sea, cartilaginous fish are hypertonic in their osmotic pressure. Thus: O a. They have high levels of sodium chloride in their cells compared with a bony fish. O b. They produce very little urine. Oc They have high levels of urea in their blood. O d. Osmoregulation requires a greater expenditure in energy compared with a bony fish. O e. They need much larger salt glands than in a bony fish.
Unlike bony fish in the sea, cartilaginous fish are hypertonic in their osmotic pressure. Thus: O a. They have high levels of sodium chloride in their cells compared with a bony fish. O b. They produce very little urine. Oc They have high levels of urea in their blood. O d. Osmoregulation requires a greater expenditure in energy compared with a bony fish. O e. They need much larger salt glands than in a bony fish.
Chapter32: Structural Support And Movement
Section: Chapter Questions
Problem 14SA
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