Mike has just returned home from college for the summer and notices that his 8-year-old Dalmatian dog Patches is limping and has difficulty walking up and down stairs. When Mike takes Patches to the vet, the vet recommends that Mike put him on a low-purine diet. This dietary change will lessen the formation of painful precipitates of ________ in Patches' joints.
A. adenine and guanine
B. urea
C. ammonia
D. NaCl
E. uric acid
Answer: E
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Respond to statements 170–174 in reference to the five regions
of the vertebrate brain listed below. a. cerebrum b. hypothalamus c. pons d. cerebellum e. medulla oblongata D 170. This region contains the reflex centers involved in respiration. D 171. This region controls much of the endocrine system. D 172. This region controls the autonomic division of the nervous system. M 173. This region controls the complex coordination of motor activity and limb movement. D 174. This region connects to parasympathetic neurons that innervate the heart and lungs.
In Griffith’s experiments, what made the harmless R cells grow capsules when exposed to heat-killed S cells?
a. Protein b. DNA c. Lipids d. Polysaccharides
Recent studies of an oyster-rich bay indicated a high coliform count. What should the fisheries' officers do?
A. Nothing. A high coliform count is beneficial to humans who eat the oysters. B. Nothing. A high coliform count is good for oyster production. C. Nothing. A high coliform count is normal. D. Shut down the bay. A high coliform count is harmful to the oysters. E. Shut down the bay. A high coliform count is harmful to humans who eat the oysters.
Organisms that can grow in habitats with low water activity by maintaining a high internal salt concentration are called ________ organisms.
Fill in the blank(s) with the appropriate word(s).