Which of the following types of muscles are striated?
A. Skeletal and smooth
B. Skeletal and cardiac
C. Cardiac only
D. Skeletal, smooth, and cardiac
E. Triceps and biceps only
Answer: B
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The function of the central vacuole in plants may include all of the following EXCEPT ____
a. protein synthesis b. storage of salts, sugars, and proteins c. enzymatic digestion d. storage of chemical defenses against pathogens e. storage of waste products
Blood displays a bright red color when
A) oxygen is released by hemoglobin as blood travels through capillaries. B) four oxygen molecules bind to hemoglobin to create oxyhemoglobin. C) plasma albumin levels increase as blood goes through the lungs. D) carbon dioxide binds to the heme group of hemoglobin. E) deoxyhemoglobin is formed in blood plasma.
Which of the below processes naturally releases CO2 into the atmosphere (select all that apply)?
A. volcanism B. chemical weathering C. subduction D. biomineralization E. oxidation of fossil fuels (via bacteria)
When carbon dioxide is absorbed into water, the solution becomes more
a. acidic. b. basic. c. warm. d. red.