1. how are stars important to the milky way?
2. how has the knowledge and perception of the universe changed over the past century?
3. what effect does dark energy have on the universe?
4. how is matter important to the universe?
5. what do scientists believe may be the fate of the universe? which theory do you feel is the better explanation of what may happen? why?

What happens when a magniseum ion ia atracked to a chlrene ion

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?