Carbon dioxide and oxygen are molecules that can move freely across a plasma membrane. what determines the direction that carbon dioxide and oxygen molecules move? 1points a orientation of cholesterol in the plasma membrane b concentration gradient across the plasma membrane c configuration of phospholipids in the plasma membrane d location of receptors on the surface of the plasma membrane

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