Biology, 11.11.2020 19:20 genyjoannerubiera
which statement explains why oxygen molecules easily diffuse across a cell membrane while dna molecules do not?  a. dna molecules contain carbon atoms, while oxygen molecules have only oxygen atoms.  b. dna molecules have phosphate groups that the cell membrane repels.  c. oxygen molecules are very small, while dna molecules are very large.  d. oxygen molecules are more useful to a cell than are dna molecules.
Answers: 1
Biology, 22.06.2019 00:40
World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s
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Biology, 22.06.2019 06:40
Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.
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Biology, 22.06.2019 14:00
How far down have geologists drilled holes ? (science) a: 3.8 km b: 12 km c: 100 m d: 1200 km
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which statement explains why oxygen molecules easily diffuse across a cell membrane while dna molecu...
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