Answer:
Dark matter provides the gravity that allows the stars to rotate at the same speed.
Explanation:
The stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars in the middle of the galaxy. How does this provide evidence of dark matter?
Dark matter absorbs light from outside the galaxy, allowing the light of the stars in the galaxy to show the orbital speeds of the stars.
Dark matter emits the light that astronomers need to see the orbital speeds of the stars.
Dark matter subtracts gravity, which allows the stars to rotate at the same speed.
Dark matter provides the gravity that allows the stars to rotate at the same speed.
<u><em>Please don't use these answers to cheat they are for help.</em></u>
Answer:
animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale
It’s A, and the relationship between cellular representation and photosynthesis creates a balance
This was so because the microscopes were not of high resolutions back then.