Penicillin is a naturally derived antibiotic made from what? a. berries b. foxglove c. fungus d. willow trees

Made from a. berries

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.

Closing a ring restricts the rotation around individual car bon carbon bonds hope it will you !