As a result of short growing seasons, people in extremely cold regions often eat a lot of
a. fiber
b. protein
c. vegetables
d. fresh fruits

The correct answer is option b. "protein".

Explanation:

People living in extremely cold regions have to adapt to short growing seasons and to the lack of fresh fruits and vegetables for most of the year. As a result northern people often eat a lot of protein from animal sources. The most extreme example of this situation is the Eskimo's diet, which for 10 months of the year live almost entirely from hunting fish, birds, caribou, seals and other animals.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.