42. Osmoregulation and Excretion
Osmoregulation and Excretion
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- Multiple ChoiceAn albatross spending its life hovering over the ocean provides an extreme example of __________, the process by which animals control solute concentrations and balance water gain and loss.951views
- Multiple ChoiceOsmoconformers are animals that __________.965views
- Multiple ChoiceIn a marine environment, animals that are isoosmotic relative to their environment __________.985views
- Multiple ChoiceWhich type of organism would have the least chance of long-term survival in the given environment?805views
- Textbook Question
Unlike an earthworm's metanephridia, a mammalian nephron
a. Is intimately associated with a capillary network.
b. Functions in both osmoregulation and excretion.
c. Receives filtrate from blood instead of coelomic fluid.
d. Has a transport epithelium.
958views - Textbook QuestionComplete this map, which presents the three main topics of this chapter.711views
- Textbook Question
Which of the following statements regarding fishes that live in fresh-water is/are correct? Select True or False for each statement.
T/F Water moves across the gills via osmosis until equilibrium is established, at which time the water molecules stop moving.
T/F They lose water to their environment primarily through the gills. They replace this water by drinking.
T/F Water enters epithelial cells in their gills via osmosis. Electrolytes leave the same cells via diffusion.
T/F They have specialized epithelia that actively pump electrolytes from the environment into the blood.
430views - Textbook Question
Which process in the nephron is least selective?
a. Filtration
b. Reabsorption
c. Active transport
d. Secretion
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