How does a cell maintain homeostasis? A. Regulates what enters and leaves the cell
B. Structure and support
C. Flexibility
D. Protective barrier

Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of this? answer, i will give brainiest to first person to get it right.

Explain the process that creates the heat of the sun?

Creating new things to solve problems and improve life depends on the close interaction of which two fields?