Smooth muscle
A. can stay contracted for long periods of time.
B. responds quickly to nervous stimulation.
C. is present in specific parts of the body like the muscles of the back.
D. does not respond to hormones.
A. can stay contracted for long periods of time.
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Filtrate that is removed from the blood is
collected by the a. loop of Henle. b. glomerulus. c. distal tubule. d. proximal tubule. e. Bowman's capsule.
Which of the following statements is correct with respect to flagella and cilia?
A) The flagellum is usually at the leading end of a swimming sperm cell. B) Cilia generate a force parallel to the cell surface. C) There usually are fewer cilia than flagella. D) Cilia generally are longer than flagella. E) Cilia often have a helical pattern of movement.
How are the algae economically important?
A. They increase environmental calcium levels. B. They decrease the population of harmful fungi. C. They provide fiber in most diets. D. They provide food additives.
Which of the following processes directly produce the most ATP?
a. synthesis of acetyl-CoA b. the Krebs cycle c. Glycolysis d. the electron transport chain