The movement of some molecules and ions out of excretory system tubules and back into body fluids
is
a. reabsorption.
b. release.
c. filtration.
d. secretion.
e. diffusion.
A
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In a mammal that you are studying, blood sodium levels are decreasing sharply. To correct this problem, which hormone might you try to administer?
A. cortisol B. aldosterone C. estrogen D. antidiuretic hormone E. testosterone
What cellular process is represented in the accompanying figure?
a. lysis
b. exocytosis
c. cotransport
d. pinocytosis
e. facilitated diffusion
A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?
a) herbivore; decomposer b) carnivore; consumer c) autotroph; herbivore d) producer; heterotroph
The multiple, small bones (usually 8 total) of the wrist are called _____ collectively.
Fill in the blank(s) with correct word