Which process in living things evolved as oxygen levels increased in earth's atmosphere?

2 answers:

4 0

I believe the correct answer from the choices listed above is option B. The process by which living things <span>evolved as oxygen levels increased in earth's atmosphere would be aerobic respiration. This process involves the consumption of oxygen. Hope this answers the question.</span>

Lubov Fominskaja [6]4 years ago

3 0

Answer;

-Aerobic respiration;

Explanation;

-Aerobic respiration is the process in living things that evolved as oxygen levels increased in earth's atmosphere. Aerobic respiration is the process in which cellular energy is produced in the presence of oxygen. Cells breakdown nutrients, such as glucose, in the mitochondria to produce energy in the form of ATP which can be used by the cells.

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Draw the structure of the bromohydrin formed when (Z)-3-hexene reacts with Br2/H2O. Use the wedge/hash bond tools to indicate st

Ipatiy [6.2K]

Answer:

(3R,4R)-4-bromohexan-3-ol

Explanation:

In this case, we have reaction called <u>halohydrin formation</u>. This is a <u>markovnikov reaction</u> with <u>anti configuration</u>. Therefore the halogen in this case "Br" and the "OH" must have <u>different configurations</u>. Additionally, in this molecule both carbons have the <u>same substitution</u>, so the "OH" can go in any carbon.

Finally, in the product we will have <u>chiral carbons</u>, so we have to find the absolute configuration for each carbon. On carbon 3 we will have an "R" configuration on carbon 4 we will have also an "R" configuration. (See figure 1)

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3 years ago

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katovenus [111]

Answer:

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4 years ago

the temperature of a balloon rises from 275 degrees k to 395 degrees k, what would the ending volume be if it started at 5 L

Airida [17]

<h3>Answer:</h3>

7.182K

<h3>Explanation:</h3>

From the question we are given;

Initial temperature, T1 = 275 K
Final temperature, T2 = 395 K
Initial volume, V1 = 5 L

We are required to calculate the final volume, V2

Charles's law is the law that relates the volume of a gas and its temperature.
It states that the volume of a fixed mass of a gas and its absolute temperature are directly proportional at a constant pressure.
Therefore;

$\frac{V1}{T1}=\frac{V2}{T2}$