Question

Dr. Blehert took healthy bats into his laboratory. He exposed some of them to the fungus suspected of causing white-nose syndrome (WNS), while the rest of the bats were not exposed to the fungus but were otherwise kept under the same environmental conditions. This method of manipulating one or more aspects of the natural world in a repeatable manner and with the intention of answering a specific question is called a(n)

Answer 1

Answer:

controlled experiment.                                                      

Explanation:

Controlled experiment: In research, the term controlled experiment is defined as a scientific research or test that can be manipulated, changed, or altered by an experimenter, scientist, or researcher to test a particular variable at a time. In a controlled experiment, the independent variable is the variable that is being tested and therefore adjusted or altered to know its effect on a particular system being studied.

In the question above, the given statement is referred to as a controlled experiment.