has an odor. has separate parts. can make a noise and has a lifelike color. carries out basic life functions.
I gave my students this multiple choice question: On a field trip in a wooded area, you see a small, strange object. You wonder whether it is a live animal. The best way to find out is to observe the object to see if it

Only one answer is correct among these 4 choices:
- has an odor.
- has separate parts.
- can make a noise and has a lifelike color.
- carries out basic life functions.

Could you tell me which one is correct?

carries out basic life functions.