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.

Question: Twenty wolves recently left their pack for new territory. The smaller number of wolves in the pack means that the availability of food will be 
 Answer: greater
As the population increases, the food supply, or the supply of another necessary resource, may decrease.

Question: Scientists discovered a region where there was a much smaller amount of greenhouse gases getting caught in the atmosphere. Compared to other regions, this region's atmosphere will have a 
 Answer: lower temperature
More greenhouse gases trap more heat and warm the atmosphere.

Question: Would you expect to see less allele shift in a population of roses grown in a greenhouse if the greenhouse had 
 Answer: 2,000 rose plants?

The smaller a population is, the more allele frequencies may drift.