Scientists recently discovered that three different types of squid, a marine animal, previously thought to be
three different species, were actually all members of one species. Their earlier ideas were based on using
squid carcasses (dead bodies). The new, more accepted classification is most probably based on an analysis of
(1) a greater number of squid carcasses
(2) the feeding habits of the three different species
(3) a number of newly found squid fossils
(4) the DNA present in the cells of squid

i think it is true in my reasonment ..

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.  

well, since there is no answer choices, i will give an answer on how it works : )

the two objects are placed together. energy will always be transferred from the hotter object to the cooler object until they are equal. hope this is close to one of the answer choices : )