In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

[EX Q]: Question: An decrease in birth rates indicates a/an _____ in the food supply. 
 Answer: decrease
[EX A]: Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.

[EX Q]: Question: If Mona is driving her car and she begins to slow acceleration, what happens to the car's kinetic energy? 
 Answer: decreases
[EX A]: Anything that is moving has kinetic energy, and the faster it is moving, the more kinetic energy it has.

[EX Q]: Question: When a cell is alive and active it will have what level of mitochondria? 
 Answer: high
[EX A]:
Cells that are very active would typically have more mitochondria than cells that are less active.