My head is paining, how to come out of it permanently ?

pull the lever back, slide a smooth one in, put it back into place, look down the tunnel,  close your eyes, pull the trigger

Explanation:

Try taking some rest. Check your temperature and depending on that take some medicine. I would also suggest letting go of your stress.

Explanation:

Your headache might be caused by lack of rest so it is important for you to sleep. It may also be caused by a fever so you should check your temperature.

"a.) well–developed vascular system."

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.