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The u. s. congress has passed many acts designed to protect the environment. a) describe three ways that the clean water act and the endangered species act could work together to protect the environment and promote recreational opportunities for citizens. b) describe two ways that the clean air act could provide economic benefits while protecting air quality.
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Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
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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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Biology, 22.06.2019 15:30
Wich is not standing in the way of astronomers getting a good view of different star
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The u. s. congress has passed many acts designed to protect the environment. a) describe three ways...
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