Plz ! the effect of temperature on bacterial growth is studied. several bacteria cultures are incubated at 0, 10, 20, and 30 degrees celsius. (note: bacteria can grow below 0 degrees.) bacteria growth is then recorded. what is the dependent variable? a. time b. bacterial growth c. temperature d. 30 °c

protist eukaryotes that are not plants, animals, or fungi ("misfits")

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.