I think that b is the correct
Answer:
The two main adaptations that desert animals must make are how to deal with lack of water and how to deal with extremes in temperature. Many desert animals avoid the heat of the desert by simply staying out of it as much as possible. ... The kidneys of desert animals concentrate urine, so that they excrete less water. Hope this helps!!
Explanation:
Pre-modern-high birth rate and death rate
Mature industrial-low birth rates, death rates are constant
Industrialization-high birth rate and low death rate
The vacuole holds large amounts of water or food. to store water and food during a drought or winter