Gravity is a force that can make things go down hill.
The statement that does not apply to experimental surgery on animals is that the importance of a sterile surgery is to be decided by the researcher.
<h3>What is surgery?</h3>
A surgical procedure is an intervention that involves the opening of the body of an organism in order to carry it out.
The statement that does not apply in the experimental surgery of animals is that the importance of a sterile surgery is to be decided by the researcher.
Learn more about surgery:brainly.com/question/10479664?
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It is not c or d. I think it is a.
