In what part of a nonfiction book will you most likely find the names of the chapters?

The statement is correct because if there is a bunch of noise around you and you are focusing on the noise you will not comprehend your questions and lessons nor will you be able to get the proportion information you need and you will likely spend many more hours on work than normal than if you could ignore the sound

Manual pipetting creates a musculoskeletal load on the neck, shoulders, and upper limbs and the type of injuries that this can lead to is called repetitive stress injuries.

Go on google and look for the packet

After spending all that time on the research then by all means modify the hypothesis or aim by reporting such. for example the findings did not bring forth what was expected but brought about different yet interesting findings worth exploring so the hypothesis is changed to reflect this new findings.

i may be way off but.