The most surprising thing about the universe is that it we don’t know when it will end and it could end at any point in time. The most surprising fact about our galaxy is that it would take around 26,000 years to get out of it.
I think it's B cuz each variable does need to be viewed one at a time
Arterias, venas y capilares.
I think the correct answer is A
Answer:
Cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
Explanation: