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Vocabulary for science test 4/10/2012

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Question
Answer
Cell Division   show
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show Def. - A structure made of DNA and protein in the nucleus of a eukaryotic cell.  
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Reproduction   show
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show Def. - A type of reproduction that requires only one parent.  
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show Def. - A type of reproduction that involves special cells called sex cells.  
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Sex Cells   show
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show Def. - Cell division that produces sex cells with half the number of chromosomes.  
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Diploid   show
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show Def. - A half set of chromosomes.  
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show Def. - The union of an egg and sperm.  
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Zygote   show
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show Def. - An organism in its earliest stage of development.  
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show Def. - The process of cell specialization.  
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show Def. - An inherited trait that helps an organism to survive.  
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Evolution   show
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Ancestor   show
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Cladogram   show
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Homologous structures   show
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Vertebrates   show
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Natural Selection   show
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show Def. - The variety of alleles in a population.  
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Testes   show
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show Def. - A chemical that regulates body functions.  
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Semen   show
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Ovaries   show
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Ovulation   show
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show Def. - A structure of the ovary where an egg matures.  
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Implantation   show
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Umbilical Cord   show
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Fetus   show
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Process of Natural Selection   show
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show 1. Isolation 2. Adaptation 3. Differentiation  
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