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zheka24 [161]
3 years ago
8

Which choice refers to a single population ?

Biology
1 answer:
lozanna [386]3 years ago
4 0

Answer:

guy above me is correct

Explanation:

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A communications satellite transmits a radio wave at a frequency of 9.4 x 10^9 Hz. What is the signal’s wavelength? Assume the w
sergejj [24]
To calculate this we will use the light equation:
c=λ*f

We have Frequency f=9.4* 10^{9}Hz.
We know that speed of light in vacuum is c =3.8* 10^{8} m/s.
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).

So:
f=9.4* 10^{9}1/s
<span>c =3.8* 10^{8} m/s
</span>
<span>c=λ*f
</span>⇒ λ= \frac{c}{f}
⇒ λ= \frac{3.8* 10^{8}}{9.4* 10^{9}}
⇒ <span>λ</span>=0.04 m

5 0
4 years ago
Compare the processes of anaerobic respiration in muscle and plant cells
NARA [144]

Anaerobic respiration is different in plants and animals:

Anaerobic respiration occurs when oxygen is not available and occurs differently in animal and plant cells. In animal cells anaerobic respiration often occurs during exercise. ... It still occurs without oxygen but the glucose molecule is broken down into ethanol, carbon dioxide and a small amount of energy.

5 0
3 years ago
Which of the following is extrusive? <br><br>Magma <br>Lava <br>Laccolith <br>Batholith
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The answer to which of the following is extrusive is letter B. lava
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storchak [24]

Answer:

Testing Platismatia glauca could help scientists understand which pollutants have the largest effect on lichen populations. It also may help scientists understand the current pollutant levels in the atmosphere compared to the population of lichens on the trees. This information can help them more accurately predict population changes over time.

hope this helps:)

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The DNA of a eukaryotic cell is contained in the cell nucleus.

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