In a marine environment, what is the function of the structure on Figure 48-2 labeled A?
a. salt excretion
b. water gain by osmosis
c. drinking
d. removal of salts and nitrogenous wastes from the blood
e. release of nitrogenous wastes
A
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Whether the external temperature is hot or cold, birds maintain an internal body temperature of approximately 40?C. This is an example of.
A. metabolism. B. cellular respiration. C. growth and development. D. homeostasis. E. proteomics.
What are the three major functions of membrane proteins?
What will be an ideal response?
Which of the following cell processes depend on the movement of membrane components and would probably not be possible if membranes were rigid, nonfluid structures?
a) formation of intercellular junctions b) secretion c) all of these answers are correct d) cell growth
Filtering of blood and recycling of dead red blood cells are functions of the:
A) liver. B) spleen. C) pancreas. D) kidneys.