Answer:
A feedback loop is a biological occurrence where the output of a system amplifies the system (positive feedback) or inhibits the system (negative feedback).
Explanation:
Example, during blood clotting, a cascade of enzymic proteins acitvates each other, leading to the formation of fibrin clot that prevents further blood loss.
Answer:
The earliest known life-forms are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 Gya (billion years ago), relatively soon after the oceans formed 4.41 Gya, and not long after the formation of the Earth 4.54 Gya.
Explanation:
A CELL WALL because the other three appear in different types of cells
Answer:
Star Creek is flowing from East to West, that is because the creek is small and has just begun to form as an extension of the Cayuta Creek.
Explanation:
True, if you trying eating while pinching your nose, your sense of taste weakens.