What type of genetic conditions allow the best chance for organisms to survive in times of environmental change and challenges?

There are different structural adaptations that can help the organism survive in environment changes.

When the heat turns to cold a bear will hibernate. It's genetics allow the bear to keep itself warm (and of course the area that it hides itself in).

A bird will fly to a new area, where it's still hot.

Other animals, such as wolves will stop shedding and grow thicker and longer fur. This fur will help it stay warm in the winter.

All organisms have their system and each one is unique to the creature.

Hope this helped! ;)

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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.