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Basile [38]
3 years ago
10

Floods droughts fire earthquakes are examples of

Biology
2 answers:
masya89 [10]3 years ago
6 0
Natural disasters because they are all natural  
Crank3 years ago
3 0
Natural Disasters :)
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8-4 Discounting the Transverse Carrier Model. At one time, membrane biologists thought that transport proteins might act by bind
Natasha_Volkova [10]

Answer:

The two main reasons are nonpolar core of the bilayer and the active transport.

Explanation:

The membrane is structured to have two outer layers that are polar and an inner layer that is nonpolar.

If a membrane protein is exposed to the solvent, i<em>t will also have a polar side. It would be very difficult for the polar face of the membrane to move through the nonpolar core of the bilayer.</em> Therefore, this model is not feasible.

One major form of transport, active transport, moves solutes up the concentration gradient. <em>The binding of a solute and then release on another side of the membrane would only work for facilitated diffusion because it would cause a net movement of solutes down the concentration gradient.</em> It is unclear how energy could be expended to drive this process in the transverse carrier model.<em> Therefore, the transverse carrier model does not explain active transport.</em>

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3 years ago
From which of the following does the basic structure of hair and nails form?
arsen [322]

Answer: D. Keratin

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2 years ago
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Yanka [14]

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We have to evolve or we will just slowly die off.

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This gene sequence undergoes transcription (i.e., is copied) into ____________ by rna polymerase and other proteins. this occurs
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Blank convert sunlight to chemical energy
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chloroplasts

BRAINLIEST IS APPRECIATED :)

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