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Biology, 21.06.2019 18:30
Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions
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Biology, 21.06.2019 20:50
Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection
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Biology, 22.06.2019 09:00
Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis
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Biology, 22.06.2019 13:20
Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing
Answers: 1
Describe how the three layers of the embryo are formed from a single layer of cells in the blastula....
Biology, 21.03.2020 11:47
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Mathematics, 21.03.2020 11:47
Mathematics, 21.03.2020 11:47
Mathematics, 21.03.2020 11:47
Mathematics, 21.03.2020 11:47
Mathematics, 21.03.2020 11:48
Mathematics, 21.03.2020 11:48