Answer:
Explanation:
Alright so the way to do this is to use properties of integrals to make our life easier.
So we have:

So lets break this up into two different integrals that represent the same area.

Lets think about what is going on up there. The integral from four to zero gives us the area under the curve of f(x) from four to zero. If we subtract this from the integral from one to zero (the area under f from one to zero) we are left with the area under f from four to one! Hence:

But since we have these values we can say that:
-3 - 2 = -5
Which means that
= -5
So now we can evaluate 
Lets first break up our integrand into two integrals
= 
Now we can evaluate this:
We know that
= -5
So:
where x is evaluated at 4 to 1 so
-15 + 2(3)
So we are left with -15 + 6 = -9
Answer:Herbivores
Why?Well,herbivores only eat plants.If all producers went away,herbivores would die.
The answer is, infact, D. You were right.
Urban cities emerged in Europe during the second industrial revolution when there was many new things introduced both good and bad urban areas would be very crowded as many people would move into urban cities due to the mass production of new technology an apartment of one room would consist of at least two families including grandparents. During this time many people would get sick because of how polluted cities would be which also suggests that people would move from rural areas to urban areas and Vice versa