Answer:
fails to verify
Explanation:
An experiment that <u>fails to verify</u> a hypothesis will often provide a new direction for the researcher.
Researchers conduct experiments to develop hypotheses. A hypothesis is a testable and falsifiable explanation. A hypothesis can be tested. It is possible to prove the hypothesis as true or false.
An experiment is a way to test the hypothesis.
Photosynthesis produces oxygen gas by the reaction of sunlight and carbon dioxide. Every living thing living in an ecosystem requires oxygen to breathe and to survive.
Heat from the earths core causes movement in the mantle, which results in movement on the crust.
It should be carbohydrates
A person who specializes in the study of animals is called a zoologist. Zoologists who study certain kinds of animals have their own names.