Animals infected with Leptospira interrogans shed this organism in their
a) urine.
b) blood.
c) sputum.
d) saliva.
Ans: a) urine.
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The female fetal pig is similar to the male fetal pig in that its body
(a) has separate openings for the urinary system and the reproductive system. (b) has a common opening for the urinary system and the reproductive system. (c) has an opening for the urinary system but none for the reproductive system. (d) has an opening for the reproductive system but none for the excretory system.
____ is the net movement of molecules or ions from a low concentration to a higher concentration
a. active transport b. facilitated diffusion c. exocytosis d. osmosis e. diffusion
Which accessory digestive organ secretes both enzymes and hormones?
a. pancreas b. gallbladder c. liver d. duodenum e. stomach
Proximate causes of behavior are causes that include all of the following except:a
genetic processes. b. developmental processes. c. physiological processes. d. evolutionary pressures. e. immediate causes.