Who invented bacteria?
• van Leeuwenhoek • Schleiden and Schwann • Hooke • Pasteur • None of these* NOTE: This item depends on an understanding of the term invented rather than an understanding of the contributions of individuals, since no one invented bacteria. Additional problems: The use of all of these or none of these should be avoided since they can frequently be justified as the answer even when they are not intended to be the answer.