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ollegr [7]
3 years ago
14

How long ago did homo sapiens appear

Biology
1 answer:
GuDViN [60]3 years ago
4 0
About from <span>1.8 to 1.3 million years ago,</span>
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Compare passive and active transport through the cell membrane, including energy use and concentration gradients.
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Passive transport vs active transport sounds like what it is. In passive transport, there is no energy needed to get the molecules across the cell membrane, whereas in active transport, energy is expended getting the molecules across the membrane. Basically in active transport the ATP in your cells gives one of it’s phosphates to the transport proteins in your cell membrane and it lets select molecules in. These molecules are moving through a concentration gradient during active transport(with the help of ATP), from an area of low concentration to an area of high concentration.
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3 years ago
Which one is NOT one of the 5 major parts of a BULB? Root
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<em>h</em><em>o</em><em>p</em><em>e</em><em> </em><em>i</em><em>t</em><em> </em><em>h</em><em>e</em><em>l</em><em>p</em><em> </em><em>y</em><em>o</em><em>u</em><em />

8 0
1 year ago
n some organisms, the primary function of a gene in a cell is to participate in regulating the body as a whole rather than respo
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Explanation:

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3 years ago
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Electromagnetic spectrum
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