Freshwater fishes deal with the osmotic stress of living in hypoosmotic conditions in part by ____
a. active transport of ions into the body through the gills
b. excreting nitrogenous wastes through their kidneys as urea
c. active transport of ions out of the body by chloride cells
d. excreting excess salt through the actions of specialized salt glands in their heads
e. maintaining high levels of urea and trimethylamine oxide in body fluids
ANSWER: a
You might also like to view...
Where is the consensus sequence for translational initiation according to Kozak's rules?
A. -6 to +4 B. -12 to -2 C. +1 to +10 D. -9 to +1
When individuals of two species interact, the nature of the interaction can be classified qualitatively as positive, negative, or ________
Fill in the blank(s) with correct word
Compare and contrast Type I and Type III survivorship curves. Sketch a correctly labeled graph to support your
comparison. BONUS: Identify two organisms that represent each of the two types of survivorship strategies discussed here. What will be an ideal response?
Gaps in fossil record _____________.
a. demonstrate our inability to date geological sediments b. are expected since the probability that any organism will fossilize is extremely low c. have not been filled in as new fossils have been discovered d. weaken the theory of evolution