2. based on their names, you know that the bears ursus arctos and ursus americanus do not
belong to the same
phylum.
class.
genus.
species

The correct option is D.  Based on their names, you know that the bears Ursus arctos and Ursus americanus do not  belong to the same species.

Explanation:

In the field of biological sciences, taxonomy can be described as the classification of an organism based on its similarities and differences with another organism. This classification has eight main domains which are Domain,Kingdom, Phylum, Class, Order, Family, Genus and Species.

An organism's scientific name has two parts: the first part is the genus name and second part is the species name. According to this rule, Ursus arctos and Ursus americanus belong to the same genus but are different species.

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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.