Light from the galaxies is shifted to longer (and thus redder) wavelengths - it is 'red-shifted.' As the objects in space that are moving away from Earth exhibit redshift, and objects in space that are moving toward Earth exhibit blueshift, most galaxies in the universe exhibit redshift, i.e., option D.
<h3>What are redshift galaxies?</h3>
Most other galaxies are moving away from others since 1929, when Edwin Hubble discovered that the Universe is expanding. Light from these galaxies is shifted to longer (and thus redder) wavelengths - it is 'red-shifted.'
Redshift is the displacement of an astronomical object's spectrum toward longer (red) wavelengths. It is attributed to the Doppler effect, which is a change in wavelength caused by the motion of a given source of waves and an observer with respect to each other.
As objects in space that are moving away from Earth exhibit redshift, and objects in space that are moving toward Earth exhibit blueshift. It shows that most galaxies in the universe exhibit redshift.
Thus the correct option is D.
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Answer:
There is sugar on the pig's surface that humans don't have.
Explanation:
"This rapid rejection occurs when human antibodies attach to sugar molecules on the surface of the transplanted pig organ's cells."
Answer:
one breaths the other has no soul like me
Explanation:
A sperm makes its way down the Fallopian tube and burrows itself into the egg
The given statement "wilderness ecosystems are dynamic, complex, and often fragile, and may be impacted by human use and activities occurring both within and outside wilderness boundaries," is true.
Wilderness ecosystems
The wilderness ecosystem is the ecosystem that has been left undisturbed by humans. There are many areas on the planet that are considered wilderness such as the Great Barrier Reef, the Amazon forest, etc. They are rich in both flora and fauna diversity.
In the United States, a total of 42× 
ha is under the protection of the National Wilderness Prevention System. They are the lands devoted to the protection of the natural ecosystem. Such an arrangement had to be made due to human encroachment and various other factors that affect the wilderness ecosystem. The main threats to the wilderness ecosystem are
- Using the land for recreational uses
- Grazing by livestock
- Forest fire
- Pollution
- Global warming
- Invasion of alien species
- The unnatural flow of water due to diversions, dams, impoundments, etc.
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