Answer:
37oC - temperature
It is important that the temperature is controlled because it maintains consistency and safety.
Explanation:
-Temperature is a common type of controlled variable.
-A control variable is anything that is held constant or limited in a research study
I believe the correct answer from the choices listed above is option D. Based on the time scale, it would be that <span>the atmosphere was formed after microscopic life appeared on Earth that is the correct inference. It is very clear in the picture as the microorganisms appear before the atmosphere. Hope this answers the question. </span>
An organisms role is important for the community because they help us to have food & to keep us alive
An atom.
Mark brainliest?
<h2>HOPE THIS HELPS!</h2>
