Part 3: Read the passages below and answer the questions by citing textual evidence. During the California Gold Rush of 1849, the world's supply of gold more than doubled, and hundreds of thousands of people
rushed to California to find their share. Boomtowns popped up to accommodate the visitors. A boomtown is a community that
receives sudden and explosive growth and development. San Francisco had around two-hundred residents in 1846, and about
36,000 in 1852. The few merchants in these boomtowns sold goods for more than ten times what they cost back East. For
example, a single pound of flour sold for as much as $17. Not everyone who joined in the California Gold Rush got rich, but
most of the boomtown merchants did.
1)
Why were boomtown merchants able to sell their products for so much money?
a) How do you know this?
2) How were the miners able to pay such steep prices for the goods offered by Boomtown merchants?
a) How do you know this?

Dr. kaylan is an ecologist who studies bird behavior. she sets up an experiment to test which type of food crows are most likely to eat when given a choice between walnuts, corn, and sunflower seeds. to perform her experiment, dr. kaylan places three food bins in an area frequented by cows. each bin contains one of the three food types. then, she measures how much of each food type is eaten every day for a month and summarizes the results of her experiment in the pie chart below. based on her results, dr. kaylan concludes that crows choose to eat corn more frequently than other food sources because it has a higher nutritional value. what is a reasonable alternate conclusion that can be drawn from dr. kaylan's data

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics