Which dna mutagen results in a frameshift mutation? answer unselected oxygen radicals unselected acridine orange unselected ethyl methanesulfonate unselected 5-bromodeoxyuridine unselected hydroxylamine

The answer is;  Acridine orange

This mutagen causes an insertion or deletion mutation because it is able to dupe the polymerases enzyme due to its structure that fits in the active site just like nucleic acids.  It is thus placed in place of a nucleic acid. During repair and replication, since the polymerase is not able to identify the right base pair to pair with the mutagen, it places any nucleic acid in the complementary strand . The intercalation interferes with the codon sequence (causing it to shift by a base pair) hence causing a frameshift mutation.

it is prolly d and c and f

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.