Which of the following is NOT one of the four basic steps in successfully viewing a specimen under the microscope?
A) setup
B) placing the specimen on the stage of the microscope
C) focusing
D) magnification
B
Explanation:
A) Setup is the first step in viewing a specimen under the microscope.
C) Focusing is the second step in viewing a specimen under the microscope.
D) Magnification is the third step in viewing a specimen under the microscope.
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Cells of unitary smooth muscle are found in the longitudinal and circular muscle layers of the intestine
Indicate whether the statement is true or false
Blood leaving the heart in the pulmonary arteries has a relatively
A) high oxygen level. B) low carbon dioxide level. C) high pH level. D) low oxygen level. E) None of the answers are correct.
Cholecystokinin from the intestinal wall is stimulated by the presence of
A) lipids and partially digested proteins in the duodenum. B) proteins and partially digested lipids in the duodenum. C) lipids and partially digested carbohydrates in the duodenum. D) proteins and partially digested carbohydrates in the duodenum. E) carbohydrates and partially digested lipids in the duodenum.
During exercise, sympathetic stimulation of the heart and arteriolar smooth muscle is enhanced because of reflexes triggered by elevated mean arterial pressure and elevated pulse pressure
Indicate whether the statement is true or false.