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.
The answer would be TIA
Transient Ischemic Attack or TIA is a <span>sudden deficient supply of blood to the brain lasting a short time. This will cause the loss or reduction of function of the affected brain area. The symptoms should disappear <24 hours to have it diagnosed as TIA. If the symptoms persist >24 hours, the diagnosis would be RIND or stroke.</span>
Answer:
I think its chemical energy is not required because passive transport doesn't need energy at all
Embryologist study embryos because Embryology is central to evolutionary developmental biology ("evo-devo"), which studies the genetic control of the development process (e.g. morphogens), its link to cell signalling, its roles in certain diseases and mutations, and its links to stem cell research.
Answer:
Rate of change of volume of the pile 
Explanation:
Given -
Rate of increase of the base of the pile
inches per minute
Height of the pile
the radius of the base
Let "h" be the height of the pile and "r" be the radius of the base.
Then 
Radius "r"
inches
Rate of change of radius i.e

Volume of conical pile

Change in volume of conical pile

Substituting the value of rate of change of radius, we get -

Rate of change of volume of the pile 