Which are functions of the digestive system?
•removing waste and distributing oxygen
•breaking down food and circulating blood
•absorbing nutrients and circulating blood
•absorbing nutrients and removing waste

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

What is a universal way that predation benefits the predator? predation increases mate availability. predation in defense of space. the predator gets the energy it needs to survive. the predator keeps parasites from hurting the species.

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .