Biology Exam

1. The classification system developed by Linnaeus in the early 1700s divided living organisms into plant and animal kingdoms. Today, that has been expanded into five kingdoms. Which of the following inventions was most responsible for creating the need for the additional three kingdoms and why? (2 points) (0 pts) Fossil fuel-based transportation made it easier to explore and discover new species. (0 pts) Genetic engineering created new species which then needed new kingdoms. (2 pts) Microscopes made it possible to learn more about single-celled organisms. (0 pts) The Internet allowed scientists to discuss differences between organisms easily.
2 /2 points
2. If two organisms belong to the same phylum, they both must also belong to which of the following? (2 points) (0 pts) class (0 pts) genus (2 pts) kingdom (0 pts) order
2 /2 points
3. Why might knowledge of the gene and protein sequences of a species be useful in classifying that species? (2 points) (0 pts) It would allow more accurate naming of the species by basing names on genes rather than appearance. (0 pts) It would keep the species from being interbred with any other species that might appear physically similar to it. (2 pts) It would make it possible to compare that species to other species at a level deeper than outward appearance. (0 pts) It would prove that all the members of a given species were genetically identical to each other.
0 /2 points
4. How are viruses different from bacteria? (2 points) (0 pts) Bacteria are heterotrophic while viruses are autotrophic. (2 pts) Bacteria are living organisms; viruses are not. (0 pts) Bacteria have a membrane bound nucleus while viruses do not. (0 pts) Bacteria are multicellular; viruses are single cells.
0 /2 points
5. A single-celled organism is found living in a deep sea vent at the bottom of the ocean in extremely hot water. If it is examined further, which of the following is most