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nekit [7.7K]
3 years ago
11

What is true about electromagnetic waves from the sun? A. They travel through space without a medium B. They consist of electric

change emitted by the sun C. They are attracted to Earth's north and south magnetic poles D. They consist entirely of infrared waves
Biology
1 answer:
Cloud [144]3 years ago
3 0

Answer:

Option A) is correct.

Explanation:

Electromagnetic waves refer to waves that are created due to vibrations between a magnetic field and an electric field.

Electromagnetic waves do not require a medium to travel through space without a medium. Electromagnetic waves can travel through air,  vacuum of space and solid materials.

So,

Option A) is correct.

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Which kind of organism does not generally require oxygen or sunlight to live?
gregori [183]
Answer is A.

Archaea requires neither sunlight for photosynthesis as do plants, nor oxygen. Archaea absorbs CO2, N2, or H2S and gives off methane gas as a waste product the same way humans breathe in oxygen and breathe out carbon dioxide. An example is chemosynthetic bacteria by sea drifts. They use chemical energy to produce vital processes to live.
3 0
2 years ago
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The domestic cat genome contains 2.9×109 base pairs. The length of linker DNA in mammals is 50 base pairs. Approximately how man
IgorLugansk [536]

Answer:

Number of nucleosomes in 2.9 * 10^9bp is equal to 1.47 * 10^7

Explanation:

For wounding one nucleosome, total length of DNA required is equal to 146 bp

The length of  linker DNA in mammals is equal to 50 bp

Thus , the total length of DNA that confides between two nucleosome is equal to the sum of wounding length of DNA and the linker length

= 146 + 50\\= 196bp

Thus, in 196bp length of DNA, the total number of nucleosomes is equal to 1

Thus, number of nucleosomes in 2.9 * 10^9bp is equal to

\frac{2.9* 10^9}{196} \\1.47 * 10^7

8 0
3 years ago
Describe a way in which genetic engineering has helped criminal justice? I'm kinda confused by this. xD
Luden [163]
At a glance this one's confusing, I agree.
Genetic engineering has made it easier for forensic scientists to differentiate human DNA beyond simple blood sampling. This inevitable led to release of innocent accused prisoners.
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Tan mice lived in regions with sandy hills. Over time, many of these tan mice migrated to a region with dark-colored hills. Even
AleksandrR [38]
The first, second, and fourth statements are correct.
3 0
3 years ago
Look at the picture of the fragmented rock.
AveGali [126]

Could you add the picture please?

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