Why do scientists believe that prokaryotes existed earlier that eukaryotes

Certain eukaryote cell structures resemble prokaryotes.

Hope this helps!

-Payshence

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.

we would need to see the picture to answer it