What are the main organs of the alimentary canal

The main organs are the mouth, phyranx, osephagus, stomach, small and large intestines, rectum.

Explanation:

Alimentary canal is a hollow tube that runs from the mouth to the rectum as part of digestive system. Food is ingested in the mouth, digested in the stomach, absorbed in the small intestine and indigestible material further passed down to the rectum where they are eliminated as waste. The elimentary canal also consist of accessory organs that aids in the digestion of food by secreting enzymes and further converts sugars into energy; the salivary glands, teeth, pancreas, gallbladder and liver.

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.  

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.