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

Verified
Correct Answer:
Verified
Q2: One of the waste products that accumulates
Q3: Both marine bony fishes and terrestrial animals
Q3: African lungfish, which are often found in
Q4: How do spiracles contribute to the minimization
Q7: Ammonia is likely to be the primary
Q8: The body fluids of an osmoconformer would
Q9: Normal urine contains very little glucose. Diabetics
Q11: Non-avian reptiles can produce hyperosmotic urine using
Q29: The necropsy (postmortem analysis)of a freshwater fish
Q36: Organisms categorized as osmoconformers are most likely<br>A)