Fungi exhibit certain characteristics. one of these characteristics is that they

Fungi exhibit certain characteristics, one of which is that they are achlorophyllous, that is they do not have chlorophyll , which is necessary for photosynthesis. Thus due to this, fungi cannot  perform photosynthesis and therefore cannot make their own food but rely on readymade food matter.

They mostly feed on dead organic matter  the process of absorption. Some fungi release enzymes that help break down dead organics matter into chemicals that the fungi can absorb as food. Other fungi obtain food directly from living beings, which means they are parasitic.

because of

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.