Biology, 01.07.2019 20:30 ineedhelp2285
What does it mean when a mineral has a definite chemical composition? check that all apply it always occurs in pure form. it always contains certain elements. it cannot form from living or once living materials. it always contains elements in definite proportions. it cannot contain atoms from more than one element
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Biology, 22.06.2019 01:10
Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.active transport involves transport proteins, and facilitated diffusion does not.facilitated diffusion involves transport proteins, and active transport does not.active transport requires the expenditure of cellular energy, and facilitated diffusion does not.
Answers: 1
Biology, 22.06.2019 09:30
Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit
Answers: 1
What does it mean when a mineral has a definite chemical composition? check that all apply it alwa...
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