What modern animal is actually a dinosaur and shows how evolution leads to adaptive change? PLEASE HELP ME

answer: dinosaur

explanation

their extinction was caused by massive asteroid that fell on earth

i dont know it at allnow im just getting points at this pint

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.