After a natural disaster such as a hurricane or tornado, what will happen in the damaged ecosystem?
a) nothing; it will remain uninhabited.
b) a new, different ecosystem will evolve.
c) an ecosystem like the previous one will be re-established.
d) no one really knows what to expect after a natural disaster.

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center