Answer:D
Explanation:The reason is because a chemical change is that happens due to a type of chemical such as a oven or microwave heating it up and dough is heating up and forming crust and you can’t change it
Answer:
The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells.
Explanation:
When the vessels suffer vasoconstriction, the blood supply is decreased and in this way the heat of the body is maintained. The way this happens is because the blood can no longer reach the surface and therefore decreases outward heat radiation. The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells. There are several factors that cause vasoconstriction, internal or external. Environment is one of the external factors, and what happens to the penguins' feet is an example for it, since they are trying to preserve body heat to survive.
The circle part about the circulatory sysytem
Answer:
Explanation:
Cell division.
The others are just to confuse you.
Fiorella is likely to smile slightly, while Juana is likely to hold a straight face.
<h3>What is Empathy?</h3>
This is defined as the capacity to understand or feel what another person is experiencing from within their frame of reference.
Low empathy involves inability to cope with emotional situations and are usually impatient which is why when shown photos of happy faces, they are more likely to hold a straight face.
Read more about Empathy here brainly.com/question/16253958
