Answer:
Calcitonin stimulates the kidneys to absorb calcium when calcium levels are too low, while parathyroid hormone stimulates the kidneys to excrete calcium when calcium levels are too high.
Explanation:
Answer:
Domestic dogs, cheetahs, alpine plants
Explanation:
No, a person isn't just born with it. it is actually learned thourght life.
Mainly there is cell wall at the outer of prokaryotes ! but not have cell wall as PPLO or mycoplasma don't have cell wall !
Objects/people have the same MASS at all times, but if the acceleration of gravity on the object changes, i.e. you go to another planet, the objects WEIGHT changes.