An example of commensalism

Remora fish and sharks

Explanation:

Commensalism is the biological association between two organisms whereby one benefits and the other is neither harmed nor benefitted.

A good example is Remora fish and sharks. The remora fish attaches itself to the shark bodies and feed on crumbs of leftovers food eaten by the shark, also get protection from the shark, while the shark is absolutely unaffected.

The shark and the remora fish

Explanation:

The Remora fish possess a disk on its head that aids in it's attachment to larger animals for example the shark and whales.

The remora feed when the large animals feed and this works by the detachment of the remora to eat the extra food from the large animals meal.

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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.