What is the function of the excretory system? : )

a: transport nutrients
b: break down food
c: remove waste
d: respiration

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.

How does the carbon cycle involve an exchange of carbon