Which two structures are found only in plant cells? a) vacuoles and ribosomes eliminate b) chloroplasts and ribosomes c) cell walls and chloroplasts d) endoplasmic reticulum and cell walls

hey, what do you need . just post the question and i may be able to you : )

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.

acceleration = 18/3 = 6 m/s per second.

hope i

-lavira: )