Answer:
births - deaths = growth
Explanation:
(births - deaths) + (immigrants - emmigrants) is what you would normally use to calculate the growth of a population, but because they can't move, you can cut out the immigrant and emmigrant part of the equation.
Im afraid the answer is no there is a chemical in turtles saliva that does not allow you to physically drink orange juice if you do you will die.
you can put a needle through it and it won't break.