The researchers set up experimental and control microcosms, or small artificial ecosystems, to measure the release of minerals from rocks. first, they placed rock fragments of volcanic origin, either granite or andesite, into small glass containers. then they made a suspension of water and macerated (chopped and crushed) moss of the species physcomitrella patens. they added this mixture of water and moss to the experimental microcosms. for the control microcosms, they filtered out the moss and just added the water. after 130 days, they measured the amounts of various minerals found in the water in the control microcosms and in the water and moss in the experimental microcosms. how did the setup of the control and experimental microcosms differ?
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What would happen if the krill were removed from the food web
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Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water
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Biology, 22.06.2019 13:20
Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false
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Biology, 22.06.2019 14:40
In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?
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The researchers set up experimental and control microcosms, or small artificial ecosystems, to measu...
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