When a membrane allows certain materials to move in and out, it is called:

What re the two main phrases of the cell cycle.

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen

Explain why scientists use the word dominant for certain traits.