Correct ! in his science project, ben explained the pyramid of energy with an example of the population of birds and the insects they feed on. can he invert the pyramid to show the flow of energy?

Yes

Explanation:

In an energy pyramid (food chain), if the biomass of the species is increasing as one is moving towards the successive trophic levels, then it can be said to be an inverted energy pyramid.  

Parasites in a food chain results into an inverted energy pyramid. Here in this case ,  insects lie at the base of the food chain and small birds start feeding on them which are further fed upon by some larger animal. In this way biomass is increasing as  we move upward in a food chain and hence it will produce a negative energy pyramid.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

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.