Multiple Choice
How does ion composition of pre- urine differ from hemolymph?
A) Hemolymph is higher in osmolarity, conserving its Cl- .
B) Pre- urine is significantly higher in osmolarity especially with respect to Na+ and K+) .
C) The protein pumps and channels of the Malpighian tubules concentrate Cl- in the pre- urine.
D) Pre- urine is similar to hemolymph in ion composition.
Correct Answer:

Verified
Correct Answer:
Verified
Q14: Why do birds secrete uric acid as
Q15: African lungfish, which are often found in
Q16: There are microvilli on the luminal apical)
Q17: Freshwater fish reside in hypotonic environments. They
Q18: The loop of Henle dips into the
Q20: Proper functioning of body cells and processes
Q21: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6548/.jpg" alt=" Table 40.1 -What
Q22: Sharks live in seawater. Their tissues are
Q23: Which of the following affects the osmolarity
Q24: Which of the following is a function