Which of the following findings, if true, would support an argument in favor of gm foods? a. farmers using herbicide-resistant crops pollute groundwater more than farmers growing non-gm crops. b. farmers who grow gm crops have much higher yields that farmers growing unmodified crops. c. the cost of using gm crops is prohibitively expensive for 75 percent of all farmers. d. the populations of bees on farms growing insect-resistant crops are half as large as bee populations on other farms.

Option B, Farmers who grow GM crops have much higher yields that farmers growing unmodified crops.

Explanation:

An arguments in support of GM crops must show the positive effect of the genetic modification for any of the parameter involved in crop production such as yield, dependency on artificial fertilizer, attack of insecticide or pesticide, genetic diversity , etc. Here all except option B are outlining the negativities associated with GM crops.

Genetically modified crops are less resistant to diseases and also the hybrid seeds have high productivity rate due to which the annual yield escalates.

Hence, option B

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.