11. Which of the following is considered the most unifying concept in biology?
A. Taxonomy
B. Anatomy
C. Genetics
D. Evolution
12. Various bacterial species can be subdivided into
A. subspecies
B. biovarieties
C. serovarieties
D. all of these
13. Living organisms have many complex characteristics. Which one of the following is shared by non-living matter as well?
A. Homeostasis
B. Tissues
C. Reproduction
D. Molecules
14. A newly discovered microscopic structure is hypothesized to be a living organism. Which of the following lines of evidence would support the contention that this organism may be alive?
A. It contains DNA
B. It is made of a single cell
C. It utilizes energy
D. All of these
15. Mycoplasmas, rickettsiae, and chlamydiae are
A. types of fungi
B. small bacteria
C. species of protozoa
D. forms of viruses