Who won the space race? That answer may depend on who you talk to. A Russian would of course claim that they won the space race by being the pioneers by far. They put the first manmade object in space, Sputnik. They put the first man and woman in space. They also conducted the first space walk and put the first probe on Mars. However an American may argue that when the Americans landed on the moon, that was without question the biggest accomplishment in the space race. As the decades advanced, the Soviets’ space ventures fizzled out while the Americans’ space ventures grew. They made huge accomplishments, such as putting rovers on Mars and sending probes into deep space that no country has ever matched. If you had to make the call, who would you declare the winner of this epic space race? Try not to be biased towards a country for any reason other than using the facts. Make an argument using facts and events from this historical battle in the race to space. Who was the more successful country overall?

the correct answer is:

a population changes in response to a change in the environment.

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.  

the missing space is phylum

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added