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Biology Study Set 4

Biology

Quiz 42 :

Animal Development and Aging

Quiz 42 :

Animal Development and Aging

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As humans age,we tend to see a decrease in the function of various body systems.A decrease in which system will lead to problems in regulating body temperature?
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A

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When discussing the morphogenesis of Drosophila melanogaster,a homeotic gene codes for
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Answer:

D

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Which structures located on the oocyte serve to bring the entire sperm into it?
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A

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Which of the following statements about embryonic development is NOT true?
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In what process does a fertilized egg undergo cell division without further growth?
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Identify and briefly describe the labeled structures in the cross section of the vertebrate embryo. img
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The phenomenon of apoptosis or cell death
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Differentiation is characterized by
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The coelomic cavity is derived from the
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Generally,only one sperm fertilizes an egg because
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A series of events occur during fertilization.Place the following events in the proper order in which they occur. a.The "slowblock" occurs. b.A single nuclear envelope surrounds both sperm and egg pronuclei. c.The acrosomes of sperm release digestive enzymes that allow the sperm to pass through the zona pellucida to the egg plasma membrane. d.Sperm cover the surface of the egg and secrete enzymes that help weaken the corona radiata. e.Pronuclei are formed. f.The "fast block" occurs. g.Microvilli bring the entire sperm into the egg. h.Sperm squeeze through the corona radiata and bind to the zona pellucida.
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During the formation of an embryo,the hollow ball of cells having a fluid-filled cavity is called a
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Development of the neural system is characterized by
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Identify and briefly describe the labeled stages and structures in this diagram of embryonic development.Specify where cleavage and gastrulation are occurring. img
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Which structure is NOT associated with the development of the central nervous system in vertebrates?
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Which of the following stages of embryonic development consists of only two layers of cells?
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What statement about homeotic genes,as it relates to morphogenesis in Drosophila,is NOT true?
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The proper order of embryonic development is
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The neural tube of vertebrates develops during morphogenesis of the nervous system by the
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Morphogenesis is characterized by
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