<span>A substance<span> is a pure form of matter that contains only one type of atom or molecule. It can be further divided into two sub-categories: elements and compounds.</span> The types of substances that most readily diffuse through a cell membrane, however, are the nonpolar and small <span>polar molecules like carbon dioxide and <span>oxygen. These two </span>molecules<span> simple diffusion of water through the membrane thru a process known as osmosis.</span></span></span>
Answer:
D
Explanation:
i am sorry if it is wrong
Answer:
Organisms
Explanation:
Organ systems who function together as a group is classified as an organism.
They are all located in the body’s portion in which is in
the mediastinum. This is the central compartment that is being surrounded by
loose connective tissue in the cavity of thoracic in which these organs are
found such as the heart, esophagus and trachea.