An organ is a group of tissues working together to perform specific functions. An example of an organ is the heart.
D. Insulin secretion in response to high blood sugar.
Homeostasis can be described as a tendency of living organisms to maintain a state of stable internal environment. In other words, it is the tendency to resist any change in the optimal conditions for survival.
It is brought by several regulatory mechanisms in the body such as regulation of body temperature, regulation of pH, regulation of osmolarity etc.
Tadpoles have no legs while frogs do.
frogs can go on land while tadpoles can't.
frogs can breathe on land and in water while tadpoles can only breathe in water.
