Bots are literally a joke into making me cry fr. This is the seventh time adding this in, please do not troll on my question. I will report it. I need help. Please arrange it :(

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

What are transitions between a liquid and gas called? identify which way they are transitioning

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.