182practice - Exam Name_ MULTIPLE CHOICE. Choose the one...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which choice best describes a reasonable evolutionary mechanism for animal structures becoming better suited to specific functions? A) Animals with mutations that give rise to effective structures will become more abundant. B) Animals with inventions that curtail reproduction will become more abundant. C) Animals that eat the most food become the most abundant. D) Animals with parents that continually improve their offspring ʹ s structures will become more abundant. E) Animals that restrict their food intake will become less abundant. 1) 2) Similar fusiform body shapes are seen in sharks, penguins, and aquatic mammals because A) respiration through gills is enhanced by having a fusiform shape. B) the fusiform shape is coded by the same gene in all three types of animals. C) all three types evolved from ancestral forms that fly in the air. D) the laws of physics constrain the shapes that are possible for aquatic animals that swim very fast. E) natural selection has no limits when different organisms face the same challenge. 2) 3) To increase the effectiveness of exchange surfaces in the lungs and in the intestines, evolutionary pressures have A) increased the number of cell layers. B) increased the volume of the cells in these linings. C) increased the thickness of these linings. D) increased the surface area available for exchange. E) decreased the metabolic rate of the cells in these linings. 3) 4) A specialized function shared by the many cells lining the lungs and the lumen of the gut is A) greater protection due to increased cellular mass. B) lowered basal metabolic rate due to cooperation between cells. C) decreased oxygen demand due to the lack of oxygen in foods. D) greater numbers of cell organelles contained within their cytoplasm. E) increased exchange surface provided by their membranes. 4) 5) Tissues are composed of cells, and tissues functioning together make up A) organs. B) organisms. C) organelles. D) membranes. E) organ systems. 5) 6) An exchange surface is in direct contact with the external environment in the A) lungs. B) skeletal muscles. C) heart. D) brain. E) liver. 6) 1
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7) An example of a connective tissue is the A) skin. B) smooth muscles. C) cuboidal epithelium. D) nerves. E) blood. 7) 8) Blood is best classified as connective tissue because A) it is found within all the organs of the body. B) it contains more than one type of cell. C) its cells can move from place to place. D) its cells can be separated from each other by an extracellular matrix. E) it is contained in vessels that ʺ connect ʺ different parts of an organism ʹ s body. 8)
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This note was uploaded on 12/14/2009 for the course CALC 071265836 taught by Professor Sorray during the Spring '09 term at Air Force Institute of Technology, Ohio.

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182practice - Exam Name_ MULTIPLE CHOICE. Choose the one...

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