Ascientist observes one chimpanzee using sticks and leaves to pull ants out of anthills. the scientist concludes that all chimpanzees use tools. why should you be skeptical of the conclusion? choose the best answer. the scientist was not open-minded. the scientist reproduced the results. the scientist used scientific methods. the scientist needs more supporting evidence.

The scientist needs more supporting evidence.

Explanation:

A single chipanze using a tool is not enough evidence to confirm that all chipanets use tools as well. In order for the scientist to come to this conclusion, he would have to establish an experiment using several chipanzos in contact with different tools and observe how many times that result was repeated. This experience would give the scientist more supporting evidence to confirm or deny his theory that all chimpanzees use tools.

it's c (engineer's do their work with mechanical stuff not on any living being)