B b B b B b

(free points lol)

The term used to describe a disease-causing microorganism isa. virus.b. infection.c. pathogen.d. microbe.e. bacterium.

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

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?