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Biology - Chapter 47 Quiz
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Multiple Choice Questions
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It undergoes a change toward a more specialized form or function.
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What happens to a cell during the process of differentiation?
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What are the three germ layers contained in the gastrula?
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What is the formation of a fertilization envelope that bars additional sperm from entry into the egg?
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The _____ eventually develops into the sea urchin's digestive tract.
Cortical Reaction
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An ectodermal thickening above the frog's notochord forms a _____ _____.
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The posterior portion of the neural tube will develop into the frog's _____ _____.
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What is the formation of a fertilization envelope that bars additional sperm from entry into the egg?
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What are the three germ layers contained in the gastrula?
Zygote
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The notochord functions as a core around which mesodermal cells form the frog's _____.
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The _____ eventually develops into the sea urchin's digestive tract.
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In sea urchins, the process of fertilization produces a(n) _____.
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In vertebrates, the ectoderm gives rise to the ______ layer of the skin.
Ectoderm
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During gastrulation in frogs, a rod of mesoderm under the dorsal surface forms the _____.
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During gastrulation, invagination occurs at the _____.
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During gastrulation in frogs, cells from the animal pole spread over the embryo and form the _____.
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The notochord functions as a core around which mesodermal cells form the frog's _____.
Spinal Chord
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The notochord functions as a core around which mesodermal cells form the frog's _____.
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During gastrulation in frogs, a rod of mesoderm under the dorsal surface forms the _____.
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An ectodermal thickening above the frog's notochord forms a _____ _____.
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The posterior portion of the neural tube will develop into the frog's _____ _____.
Neural Tube
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An ectodermal thickening above the frog's notochord forms a _____ _____.
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The _____ _____ is(are) formed when the neural folds join and a portion of the neural plate sinks beneath the embryo's surface.
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The _____ eventually develops into the sea urchin's digestive tract.
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The posterior portion of the neural tube will develop into the frog's _____ _____.
Neural Plate
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An ectodermal thickening above the frog's notochord forms a _____ _____.
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In vertebrates, the ectoderm gives rise to the ______ layer of the skin.
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The posterior portion of the neural tube will develop into the frog's _____ _____.
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The _____ _____ is(are) formed when the neural folds join and a portion of the neural plate sinks beneath the embryo's surface.
Brain
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The notochord functions as a core around which mesodermal cells form the frog's _____.
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As cleavage continues, a zygote forms into a solid multicellular ball called a(n) _____.
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The posterior portion of the neural tube will develop into the frog's _____ _____.
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The enlarged anterior portion of the neural tube will develop into a frog's _____.
Blastula
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During gastrulation, invagination occurs at the _____.
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Several hours after fertilization, cleavage results in the formation of a hollow ball of cells called a _____.
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The notochord functions as a core around which mesodermal cells form the frog's _____.
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As cleavage continues, a zygote forms into a solid multicellular ball called a(n) _____.
Notochord
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During gastrulation in frogs, cells from the animal pole spread over the embryo and form the _____.
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During gastrulation in frogs, a rod of mesoderm under the dorsal surface forms the _____.
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The posterior portion of the neural tube will develop into the frog's _____ _____.
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During gastrulation, invagination occurs at the _____.
Blastomeres
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What are the three germ layers contained in the gastrula?
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During gastrulation, invagination occurs at the _____.
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Endoderm formation
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What are the cells created by cleavage called?
Outer
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In sea urchins, the process of fertilization produces a(n) _____.
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An ectodermal thickening above the frog's notochord forms a _____ _____.
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As cleavage continues, a zygote forms into a solid multicellular ball called a(n) _____.
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In vertebrates, the ectoderm gives rise to the ______ layer of the skin.
Archenteron
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The _____ _____ is(are) formed when the neural folds join and a portion of the neural plate sinks beneath the embryo's surface.
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The notochord functions as a core around which mesodermal cells form the frog's _____.
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The _____ eventually develops into the sea urchin's digestive tract.
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The posterior portion of the neural tube will develop into the frog's _____ _____.
True or false? Early animal development progresses through distinct stages: first the production of the zygote through fertilization, then cleavage, then the formation of the gastrula, and then the formation of the blastula.
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True
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False
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