What is the difference between an atom and an element?

The answer to your question is below

Explanation:

An atom is a diagram which describes the parts of an element. In an atom, we can observe the nucleus formed by a nucleus and shells. In the nucleus are located the protons and neutrons and in the shells are the electrons.

Elements are all the pure substances that are not combined with other substances and have specific physical and chemical properties.

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.