The method animals use to attract mates to reproduce
a:selective selection
b:sexual selection...
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Which of the following statements are true chromosomes make up genes
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In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.
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What factors contribute to the effect an environmental toxin has on the human body?
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Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
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