A student observes the following onion cells in the microscope. What type of solution was added to the sample and describe the movement of water?

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

i wish i could with all of them i can barley see the first one so here's the answer to the first one b