Insulin is released into the blood when oxygen levels are low and blood glucose levels are high
B, I think, because by saying that the ice cube has a lower heat capacity means that it cannot stead heat enough to last longer then the water and pool.
Active transport requires energy when moving molecules against a concentration agent. It requires for specific membrane transport proteins. Only a certain type of protein can move a certain type of substance.
The three main types of Active Transport are:
1) Sodium-Potassium Pump
2) Endocytosis
<span>3) Exocytosis </span>
Petiole, hopefully this helps you
