Biology, 06.11.2020 23:00 makayladurham19
Molecules can cross cell membranes from areas of low concentration to areas of high concentration by
binding with carrier proteins and ATP. What is this process called?
A. Osmosis
B. Endocytosis
C. Facilitated Diffusion
D. Active Transport
Answers: 2
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This is the process of making a prediction based on the results of prior observations of similar events.
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What organ is the first to receive nutrients that have been absorbed from the digestive tract?
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The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.
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Biology, 22.06.2019 12:40
Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .
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