Question

A well designed experimen
tests multiple variables at once
supports your hypothesis
does not need multiple trials
is controlled to only test one variable​

Answer 1

Answer:

Explanation:

Biologists and other scientists use the scientific method to ask questions about the natural world. The scientific method begins with an observation, which leads the scientist to ask a question. She or he then comes up with a  hypothesis. precisely correct, if not then inbox me have a nice day