The amazing variety of living things in a region or on our whole
planet is called?

The amazing variety of living things in a region or on our whole

planet is called biodiversity.

Explanation:

Biodiversity basically refers to the whole system of different living things in an environment and it has many different groups and kingdoms where the living things are grouped according to their characteristics.

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.  

idk and i also need to know where are those bio brainy acts lol