The osmoregulatory and ionoregulatory problems facing a freshwater fish are
A. loss of water and loss of ions.
B. loss of water and gain of ions.
C. gain of water and loss of ions.
D. gain of water and gain of ions.
E. loss of urine and gain of ions.
C. gain of water and loss of ions.
You might also like to view...
When pathogenic fungi are found growing on the roots of grape vines, grape farmers sometimes respond by covering the ground around their vines with plastic sheeting and pumping a gaseous fungicide into the soil
The most important concern of grape farmers who engage in this practice should be that the _____. A) fungicide might also kill the native yeasts residing on the surfaces of the grapes B) lichens growing on the vines' branches are not harmed C) fungicide might also kill mycorrhizae D) sheeting is transparent so that photosynthesis can continue
Drugs that are hepatotoxic cause damage to a patient's kidneys.
Answer the following statement true (T) or false (F)
The upper layer of warm, less dense water is referred to as the
A) thermocline. B) hypolimnion. C) epilimnion. D) benthic zone.
A typical sponge is best described as a
A) slow-moving suspension feeder with a true coelom. B) sessile suspension feeder with bilateral symmetry. C) slow-moving carnivore with no true tissues or symmetry. D) sessile suspension feeder with no true tissues or body symmetry.