Which substance traps pathogens and prevents them from entering the deeper tissue of the body? tears oils sweat mucus

Analyze the central conflict and its in a story to discover the theme. o resolution o protagonist antagonist character

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.

All phases of matter may have a fixed mass