Sorry but I can’t help you right now but later I’ll try
I'm pretty sure that its the 3rd answer
If you go to this link, you will be able to see the answer: http://prezi.com/eatd8nhptvh1/?utm_campaign=share&utm_medium=copy&rc=ex0share
The answer is C. thousands of galaxies
because<span> Hubble found 10,000 of galaxies just by observing one small little area in space.
So, it has to be thousands.</span>
Researchers and doctors hope stem cell studies can help to increase understanding of how diseases occur, and to better understand how diseases and conditions develop.
