Table 42.1

Multiple Choice

Table 42.1

-The intercellular concentration of three electrolytes is compared with the concentration of these electrolytes in fluid eliminated from the shark rectal gland in Table 42.1.Based on the data,which of the following is a likely function of the rectal gland?

A) The rectal gland eliminates metabolic waste.
B) The rectal gland is able to concentrate Na⁺,K⁺,and Cl⁻.
C) Chloride levels in seawater are similar to those in shark tissues.
D) There is very little potassium in sharks.