Is it true that all living things make their own food to get the energy they need to live

It is the source of all energy. A living organism can either make its own food or depend on others to make food for them. For example green plants produce their own food from a process called photosynthesis. ... Herbivores, carnivores and omnivores are all consumers, and they all have to go find food to give them energy.

Explanation:

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.  

a metamorphic rock would be formed.