So basically I'm doing an assignment and I really need help with multiple questions. Here's No. 1 Why would it be important to understand what controls the numbers and types of species in an ecosystem?

It would be crucial to know what controls the numbers and types of species in an ecosystem so that the certain species doesn't overpopulate or go extinct.  Extinction of that certain species could result in a lot of other animals dying or going extinct because that species was their prey.  Another downside of their extinction is that their prey (the certain animal that went extinct's prey) would overpopulate because they no longer have predators which subdue them.  

da.mn that took like long (2 mins xD)

Explanation:

Was that confusing xD i can tell it to u simpler if ya want'

So what's #2?  I'll answer it bc i really need points.  Can u make question #2 10 or 20 points?

even tho idc about points xD

I just need them so i can ask a question

amber has allowed scientists to study dna that has been preserved over millions of years.

the areas around the equator