What unusual pattern occurs during el nino a: cool water flows along the east coast of south america b: the trade winds strengthen c: warm water flows from the western tropical pacific toward south america d: warm water flows north alng west coast of south america

C: Warm water flows from the Western Tropical Pacific toward South America.

Explanation:

El Nino can be define as a climate cycle typically in the Pacific Ocean which results in the change in the weather pattern globally. The climate cycle develops when the warm water from the western tropical region of the Pacific Ocean moves towards the east and finally along with the equator it moves towards the coast of South America.

B, the trade winds weaken, or even blow backwards.

Explanation:

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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.