Number the steps from when a stimulus is received to when the body reacts.

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?