I've got a few science questions i would like to check.

Question

1.) An ecosystem that endures over time
Select one:
a. has reached the end of its succession process.
b. is a sustainable ecosystem. ***
c. has not experienced cycles of destruction.
d. is one that never changes.

2.) The whooping crane is endangered in your area.
What is the first step scientists must have done before listing the whooping crane as an endangered species?
Select one:
a. Estimate the whooping crane’s population ***
b. Develop a recovery plan**
c. Collect crane eggs and incubate them
d. Eliminate the crane’s predators
I think a. over b.

3.) Which of the following is an example of an ecosystem?
Select one:
a. A collection of biodegradable picnic supplies
b. A space suit
c. A shovelful of soil from a forest floor ***
d. A herd of cattle

Are these all correct?

Answer 1

Yes, they are all correct : )

Answer 2

Thank you, Ms Pi.