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Biology, 22.06.2019 15:00
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 16:00
Hydroelectric uses moving water to do work such as grinding grains in a mill true or false
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Biology, 22.06.2019 20:30
Sperm are ejaculated from the corpora cavernosa of the penis. true or false
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Jasmine is conducting an investigation and moves a magnet near a compass, causing the compass needle...
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