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patriot [66]
3 years ago
11

How do scientists know that dark matter and dark energy exist even if we can not see them

Biology
1 answer:
Gre4nikov [31]3 years ago
7 0

Answer:

We only know it's there because we can see the effect of its gravity. Scientists study dark matter by looking at the effects it has on visible objects. Scientists believe that dark matter may account for the unexplained motions of stars within galaxies. Computers play an important role in the search for dark matter information.

Explanation:

Hope That helps!

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How do u loose weight fast​
dimulka [17.4K]

We can change our fooding style. Instead of taking starchy, fatty, oily food, we can take some best fruit and vegetables for fat loss in our diet like cucumber, watermelon, grapes etc. Eating these fruits during hunger can avoid our hunger and as they do not contain any of the fat gaining factor, encourage body to utilize the stored fat. Eating these fruits with regular early exercise can obviously help you loose your fat.

6 0
3 years ago
What happens to the body when motor neurons are injured?
spayn [35]

ANSWER:

Lesions are areas of damage to motor neurons. Damage to upper motor neurons stops the signals your muscles need to move. When your muscles don't move for a long time, they become weak and stiff. Over time, it can become harder to walk and control your movement.

Explanation:

I hope it will help you

5 0
3 years ago
Often the growth cycle of one population has an effect on the cycle of another. As moose populations increase, wolf populations
babymother [125]

Answer:

The correct answer is option D) "K".

Explanation:

In this example the wolf population is described by the equation "ΔN/Δt=rN(K−N)K". Even tough the variables are not defined in the question, we can conclude that the effect of the moose population will be given by a factor that has a positive effect in the wolf's population because "as moose populations increase, wolf populations also increase". The factor "K" fits the description because it gives a positive effect on "ΔN/Δt". "K" is a factor that multiplies "rN" at two different levels, therefore the higher the value of "K", the higher value of "ΔN/Δt" will be.

6 0
3 years ago
Compare and contrast transcription and translation
tangare [24]
So first transcription takes place which is a RNA that translates DNA Template. So an example would be DNA has AGCGTCAATCTA this will be translated into UCGCAGUUAGAU

Then this message is send off to become a protein with the MRNA which then comes Translation which is the process of converting UCGCAGUUAGAU into a protein and the way it’s done is by this message going through a ribosome and gets translated by TRNA that brings amino acids together to form codons and create your protein.
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Which of these substances does not protect against invaders in the
ella [17]
The answer would be C. Tears because the others have shown to be invaders
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3 years ago
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