(20 points if right) (i couldn't find science)
which statement about a dichotomous key is true?
1. a dichotomous key is based on the temporary actions of an organism.
2. a dichotomous key may include a question that has three or more answers.
3. a dichotomous key may have a group with no organisms in it.
4. a dichotomous key is complete when each organism stands alone.

The correct answer is 4) A dichotomous key is complete when each organism stands alone.

The statement about a dichotomous key that is true is "A dichotomous key is complete when each organism stands alone."

Scientists have the need to correctly identify organisms, animals, plants, and objects. For that to happen, they have dichotomous keys.

These tools help them to identify and give a correct name that differentiates from other objects and organisms. So the most important thing about the dichotomous key is the fact that it identifies an organism, species or objects with its scientific name.

the answer is 1. photosynthesis. glad to