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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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tia_tia [17]

Answer:

the answer is a

Explanation:

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dimulka [17.4K]

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Explanation:

Ya your stomach hurts when something else happens and that REALLY sucks lol!

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Research and Report: In a paragraph, write a
agasfer [191]

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True or false. The absence of a trait cannot be used as a synapomorphy in phylogenetic analysis
kolbaska11 [484]

Answer:

False

Explanation:

Phylogenetic analysis is a means of establishing evolutionary relationships.

Synapomorphy is a shared ("syn") character that is different from the form found in an ancestor that distinguishes a clade (monophyletic group)from other organisms

The absence of a trait can be used as a synapomorphy in phylogenetic analysis. For example, the loss of a trait, such as the loss of legs in snakes, can be a valuable synapomorphy for a clade.

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22 (101 HC) Why have none of the competing hypotheses about the origin of life on Earth been developed into a scientific theory?
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