Which type of section passes through the cranial, vertebral (spinal), thoracic, and abdominopelvic cavities?

The answer is a midsagittal plane.  

Midsaggital plane refers to the hypothetical plane, which dissects the body into two equal halves along a vertical axis, that is, the right half and the left half. The midsagittal is an even plane of the body. It is witnessed in species with bilateral symmetry, like humans.  

The midsaggital plane is also known as the median plane or the midline of a species. The median or the midsagittal plane passes through the midline compositions, like the navel and the spinal cord. It is primarily used to illustrate the position of an organ in the body.  

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.