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alexdok [17]
3 years ago
11

What gas is represented by #1 on the graphic?

Biology
1 answer:
Sauron [17]3 years ago
8 0
The answer is a. Nitrogen
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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
Two different scientists were studying the carbon levels of the air above a large city. They both found that the levels had incr
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Answer:

Scientist 1

Explanation:

<em>The conclusion of scientists 1 is valid.</em>

Human activities such as burning of fossil fuels, agriculture, deforestation, etc. leads to the emission of carbon in the form of carbon dioxide into the atmosphere. <em>An increase in the population of a city will only lead to an increase in these activities and hence, an increase in the amount of carbon emitted into the atmosphere.</em>

Also, volcanic activities leads to the production of volcanic gases which is a mixture of carbon dioxide, oxides of sulfur, nitrogen, etc.

<u>However, an active volcano that is several miles away from the city might not be a major source of carbon in the air above a large city. The carbon dioxide produced from such volcanic activity thins out before reaching the city.</u>

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Short-winged fruit flies studied in the lab cannot fly because they have an allele that causes them to grow tiny wings (w). Norm
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Answer: The probability of getting a short winged fruit fly in the F1 generation is 2/4 or 1/2.

Explanation:

By using a monohybrid punnett square you should be able to come to the same answer.

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Each combination of an element with a different number of neutrons is called an isotope. The radioactive isotope is called the parent, and the isotope formed by the decay is called the daughter

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Describe the fossil record
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The Fossil record is the history of life as documented by fossils, the remains or imprints of the organisms from earlier geological periods preserved in sedimentary rock.

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