_______________ reactions transfer energy to the surroundings, usually as heat.
C. Exothermic
If it doesnt have a nucleus or a cell wall it is a prokaryote. also prokaryotes displayed in pictures tends to be longer
Answer:
physical change alert the form of appearance of the matter but does not turn any substance in the matter into a different substance.
The correct answer is; the open mouth of a baby robin is seen as a sign stimulus for the female robin (parent), and that the open mouth is the impending cause for her behavior.