The boiling point of a substance in City A is found to be 145ºC. The boiling point of City B is 141ºC. Which City, A or B is at a higher elevation? How do you know?

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

Which organelle breaks down sugar molecules that supply energy to the cell ?

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above