I believe it goes in the following order top down
1 5 3 4 2.
Answer:
1. Isabella wanted
2.She read and reviewed
3.She constructed a hypothesis
4.She submitted her proposal
5.Control groups
6.She collected
7.She reached a conclusion
8.she presented
Explanation:
I got it right
A keystone species helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.
