The tilt of the earth's axis, which essentially "turns" certain parts of earth so that some parts receive more direct sunlight
Answer:
Epinephrine binds to receptors on some smooth muscles (ex: around arterioles) → Ca++ released from ER → intracellular Ca++ up → stimulates contraction. c. Epinephrine binds to receptors on some smooth muscles (ex: around bronchioles) → phosphorylates protein needed for response to Ca++, preventing response.
Hollow bones are always a disadvantage because it means that they are less sturdy and easier for predators to break.
The cerebellum regulates water and balance
The Hypothalamus regulates sleep, body temperature and appetite.
hope this helps
Huh ??? please provide more information
