BIO 198 Assignment 1 Review Questions and Correct Answers

Science is subdivided into specific areas of study termed disciplines. These divisions are artificial but are helpful to narrow the massive scope of scientific knowledge to a manageable amount. Given what you know about each, which scientific division is likely to present the best answer to a question about how fluid dynamics affect blood pressure in mammals? Biophysics - study of biological processes through physics Darwin's ideas on evolution were advanced for his time. His approach to science and natural selection were supported by what main tenet? Operation of natural laws produces constant change and improvement Besides Darwin, the theory of evolution by means of natural selection was also independently proposed by: Alfred Wallace The term that Darwin used to describe the concept that those with superior physical, behavior or other attributes are more likely to survive than those that are not so well endowed, and thus are more likely to pass their traits to the next generation, is called: Natural Selection Recent discoveries of microscopic fossils have extended the known history of life to about: 3.5 BYA In California, a species of salamanders were geographically separated over time. The group that lived in southern California relied heavily on large gold blotches on their skin that helped to camouflage them from predators. The group that lived along the coast adopted a color pattern that mimicked a poisonous, colorful newt common to that area. Instead of being camouflaged, these salamanders advertised their colors. What type of selection process has occurred over time? Natural selection The same basic array of bones is modified to give rise to the wing of a bat and the fin of a porpoise. Such anatomical structures are called: Homologous The rate at which evolution is occurring cannot be estimated by: inferring that apes are related to humans. While you are riding the ski lift up to the top of the mountain on a very cold day you start to shiver involuntarily. You know that the shivering is your body′s attempt to help regulate your body temperature and is an example of what type of mechanism? Homeostasis