For each of the following questions or statements, choose the number of the response which best answers the question or completes each statement. For survival, a hummingbird uses a considerable amount of energy. Cells come from preexisting cells.
Viruses are true cells.
Cells are basically unlike in structure. Mitochondria are found only in plant cells. A new drug for the treatment of asthma is tested on 100 people. The people are evenly divided into two groups. One group is giving the drug and the other group is given the glucose pill.