How do respiratory organs of a fetal pig differ from an adult pig?

What type of pollution does household garbage cause

Which factor affects the force of gravity between objects? check all that apply. direction distance mass shape time

Match the order of the levels of organization in nature with the correct description. example: atoms are fundamental units of matter= level 1levels- 2,3,4,5,6,7,8.now what levels are these? population consists of organismscells consist of moleculesecosystems consist of communities interacting with there environmentmolecules consist of atomsthe biosphere consist of all ecosystems on earthcommunities consists of populationorganisms consist of cells