<em>A dichotomous key is complete when each organism stands alone</em>
<u>Explanation:</u>
A dichotomous key is used to track a required species of plant or organisms based on its distinct characteristics using series of question and answers to the question. <em>The answer of previous question asked leads with option to ask another question. </em>
This method is useful to both expert as well as non-experts. this method is effective when there is single species than group of species. <em>Problem may arise when there are many organisms with closely related characteristics. </em>
<em>This can be minimized by the scientific and systematic classification and preparation of effective set of questionnaires.</em>
Knowing and understanding the context of a piece of art is essential in grasping the meaning of the art. It gives history of the artist and the time period it was made. These art pieces are meant to teach something, and understanding the context helps with that.
