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Extensively tested and generally accepted : educated guess that has yet to be tested a) hypothesis : theory b) theory : hypothesis c) observation : theory d) observation : hypothesis
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How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex
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What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron
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All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.
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If your blood becomes too concentrated with iona, what will happen to the red blood cells
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Extensively tested and generally accepted : educated guess that has yet to be tested a) hypothesis...
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