Would it be easier to build a space colony on saturn or on one of its moons? why?

What feature of cell theory is best demonstrated in the image

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

How does photosynthesis show the conservation of mass and energy?