A Woman Buys a Fresh Loaf of Bread Wrapped in a Plastic

Short Answer

A woman buys a fresh loaf of bread wrapped in a plastic bag.She removes several slices of the bread and closes the bag tightly before storing the bread in her pantry.When she takes the loaf out several days later, she is dismayed to see mold growing on the bread.She recognizes that mold spores must have landed on the bread before she closed the bag for storage in her pantry, because she knows that living organisms do not arise through _______.