1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Yuki888 [10]
3 years ago
8

How has the Doppler effect and the redshift of stars and galaxies indicated that the universe is expanding?

Biology
2 answers:
kiruha [24]3 years ago
4 0

Answer:

The effect of red shifting in wavelength is continuously increasing which depicts the expansion of universe.

Explanation:

In Doppler shift there occurs an apparent change in the wavelength of the light emitted by star

For example – If a star is near to earth, the light emitted by it would be shorter in wavelength while a star far away from earth will emit a light that has a longer wavelength.  

Thus a shorter wavelength light is shifted towards  the end of spectrum which is blue while a longer wavelength light shifts towards the red end of spectrum (known as redshift)

The farther the star from earth , the more it is red shifted . The red shift effect is continuously increasing.

Hence, both Doppler and redshift affect depicts that universe is continuously expanding.

sertanlavr [38]3 years ago
3 0
The could tell by solar radiation and dark matter, they didnt know were dark matter was but they new it was there
You might be interested in
Three criteria used for classification of the atmosphere explained in the text are question 4 options:
Bond [772]

Answer: c.composition, temperature, and function.

Atmosphere can be classified into composition, temperature, and function.  The composition has two region, heterosphere and homosphere.  The temperature will be divided into thermosphere, mesosphere , stratosphere, troposphere . The function will be divided into ozonosphere and ionosphere

6 0
3 years ago
The geological time scale is divided up and organized according to what life forms existed on earth.
Dennis_Churaev [7]
True, though the Hadean period is one exception.
5 0
3 years ago
Read 2 more answers
Family of orientation is the family that you create with a partner.<br> True<br> False
jolli1 [7]

Answer:

False

Explanation:

A family of orientation refers to the family into which a person is born. A family of procreation describes one that is formed through marriage. These distinctions have cultural significance related to issues of lineage.

5 0
2 years ago
Read 2 more answers
Sleep could be best described as a __________. a. car with the engine started, but parked and idling b. truck driving on the fre
qaws [65]

Answer:

The best answer is A) A car with the engine started, but parked and idling.

Explanation:

This mean are body still breathing and pumping blood but were not aware and cant move.

-<u><em>Hope This Helps!</em></u>

<u><em>-Justin:)</em></u>

3 0
2 years ago
Which of the following statements about 2,3-bisphosphoglycerate (BPG) binding is FALSE?
Kitty [74]

Answer:

The answer is C. BPG aids oxygen delivery to tissues by increasing the affinity of myoglobin for oxygen

Explanation:

The 2,3-bisphosphoglycerate (BPG) which can also be referred to as the 2,3 - di phosphoglycerate , is being produced by the red cells and has the ability to deoxygenate hemoglobin. This is because , his accumulation results to a decrease in the affinity for oxygen, this means that , it will convert hemoglobin to a low oxygen affinity state.

In this case, comparing the options given, it will be concluded that, 2,3  -biphosphoglycerate {BPG} does not aids the delivery of oxygen to tissues, but  decreases the affinity of oxygen, which deoxygenate hemoglobin, and causes the concentration of the carbon dioxide to increase.

8 0
3 years ago
Read 2 more answers
Other questions:
  • When does the cell have to use active transport?
    13·1 answer
  • What term means that organisms are structurally and functionally related?
    5·1 answer
  • Which meal would provide the most energy, and includes the material needed to build muscle? a. bread and butter b. lettuce and o
    7·1 answer
  • Charles
    8·1 answer
  • Which of the following is a nonrenewable resource?
    11·2 answers
  • What kind of molecule is formed when many disaccharide molecules are combined
    12·2 answers
  • How remote sensing works and why it is important in cartography
    6·1 answer
  • Please answer these questions.
    13·1 answer
  • Which organelle stores the information that determines an individual's hair 1 point
    10·1 answer
  • Does anyone know how to mark someone Brainllest?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!