Answer:
i believe it is a
Explanation:
earth's orbit should not have an effect.
Answer:
Which of the following is an advantage of an in vitro experiment?
Variables and environmental conditions are controlled.
Explanation:
An advantage of in-vitro experiment is that the variables and environmental conditions are controlled because in-vitro experiment is performed outside a living organism with the environment in control
An educated guess is the best way to describe hypothesis
