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.

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


[Q]: Question: Mike was wiring up a new circuit to test it out. He observed that the more resistors he added to the circuit. the overall resistance level 
 Answer: Increased
[A]: Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.


[Q]: Question: Eric notices an decrease in antibiotic resistance in a certain bacteria. The mutation that causes the resistance has become _____ common 
 Answer: less
[A]:
Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.