What simple machine did the ancient egyptians use to them build the pyramids?
a. inclined plane
b. pulley
c. lever

Give the biological term for: structures that display characteristics of living organisms only within living cells

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Whats one way that rocks do not follow the typical rock cycle pathway?