What controls what molecules pass in and out of a cell?
D because this is the process of when the nitrogenous bases are going to match each other to form our DNA sequence
Answer:
Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object. The dark area is called a shadow
If the producer were to disappear then all the other organisms will either go extinct, survival of the fittest, or have to adapt to the change.
