Read the descriptions of two experiments below.
experiment 1: a student did a test to see if the hardness of the soil affects the growth of sunflowers. she used a control group and experimental groups. she repeated her experiment several times and found each time that the hardness of the soil did not affect the growth.
experiment 2: a student did a test to see if the temperature of water affects the growth of cacti. she used a control group and experimental groups. her data supported her hypothesis.
which experiment is more likely to be reliable, and why?
a. experiment 2, because its results supported the hypothesis
b. experiment 1, because it gave the same results every time
c. experiment 1, because it disproved the hypothesis
d. experiment 2, because its setup included a control group

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.