Which one of these scenarios most likely uses facilitated transport to move molecules across the cell membrane? a) oxygen moves from high to low concentration across the phospholipid bilayer. b) k+ moves from low to high concentration using a membrane protein. c) glucose moves with the concentration gradient from high to low concentration using a membrane protein. d) ca+2 ions move against the concentration gradient through a gated channel to initiate an action potential.
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Biology, 21.06.2019 15:30
How are extrusive rocks formed? magma gets trapped inside earth and cools to rock. volcanoes apply force to solid rocks and eject them. magma gets forced to earthโs surface and cools to rock. volcanoes trap lava inside earth, where it cools to rock.
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Biology, 21.06.2019 20:30
According to the big bang theory, after the "bang," the universe remained dark until about 300,000 yearsone billion yearsthree minutesthree billion years later, when neutral atoms began to form.
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Biology, 22.06.2019 10:30
What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.
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Which one of these scenarios most likely uses facilitated transport to move molecules across the cel...
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