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TiliK225 [7]
2 years ago
6

Briefly explain how the red shift light, cosmic microwave background radiation and

Biology
1 answer:
loris [4]2 years ago
5 0

Answer:

The Doppler red-shift of light observed from distant stars and galaxies gives evidence that the universe is expanding (moving away from a central point). This allows for Big Bang Theory, because after a “bang” occurs all of the matter moves away from the point of origin.

Explanation:

Hope this help!

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In which phase do sister chromatids line up in the middle of the cell, (in 'single-file', without a homologous partner)? Group o
ipn [44]

Answer:

The correct answer is ''METAPHASE I.''      

Explanation:

Metaphase I is the stage in which chromosomal studies are generally performed, because its morphology is very clear. The chromosomes, moved by the mitotic spindle, are placed in the center, between the two asters and form the so-called metaphase plate, in which the chromosomes are positioned in such a way that the kinetochore of each sister chromatid are oriented towards the opposite poles. Keeping chromosomes on the cell equator implies a balance between the forces of the microtubules that tend to move the kinetochores toward opposite poles, so positioning them in the center involves a great deal of energy.In each kinetochore, between 20-30 microtubules can be anchored, which exert traction force towards the pole from which they come, so the metaphase plate is maintained by the balance between the opposite forces of the poles on the chromosomes, which hold their sister chromatids by centromeric cohesin.

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3 years ago
According to frank-starling's law of the heart, the cardiac output is directly related to the:
Y_Kistochka [10]
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6 0
4 years ago
PLEASE HELP ME IF YOU CAN!
ivann1987 [24]

Answer:

To give the people a sense of safety knowing that they are completely safe in an Earthquake.

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5 0
3 years ago
Why is it important to follow strict safety procedures when handling a urine sample
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Because you could easily contaminate the results of the urine if you don't follow exactly what the strict rules dictate This could be a very dangerous thing because if you contaminate the results, then other doctors would think that the patient has some disease that needs to be taken care of which in reality they do not. The patient could also have to go through things or waste money on things that they don't need to because there was something in the urine that wasn't supposed to be there which was added because they didn't follow the strict rules. Then the doctor who contaminated it could be sued for malpractice which is never a good thing.

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3 years ago
WILL MARK BRAINLIEST IF ANSWERED RIGHT. PLEASE HELP!!!! What did Hill, Calvin, and other researchers discover separately about t
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Answer:

D.

Explanation:

i think

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3 years ago
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