Quiz 2 Due No due date Points 110 Allowed Attempts Unlimited Questions 11 Time Limit None This quiz is no longer available as the course has been concluded. Attempt History LATEST Unanswered Attempt Time Score Attempt 1 3,222 minutes 0 out of 110 Question 1 0 / 10 pts The second law of thermodynamics states that orrect Answer whenever energy is used, some becomes converted to a form difficult to use to do work. Unanswered Question 2 0 / 10 pts As the Colorado River flows downstream, it passes through a series of reservoirs, dams, and extraction areas for human comsumption. These human impacts on the Colorado River result in which of the following (Select ALL the apply): orrect Answer reduced river flow when the Colorado River empties into the sea orrect Answer increased salt concentrations in the Colorado River as it flows downstream Unanswered Question 3 0 / 10 pts The First Law of Thermodynamics states that orrect Answer Energy may be converted but the total amount of energy does not change 2/6 Unanswered Question 4 0 / 10 pts The America Cancer Society estimates that an average American eats 2250 calories worth of energy every day. If the average American's body is 15% efficient in using this energy (i.e. converting this energy into work and bodily necessities), how many calories per day does the average American actually use? Note: Do not include the units (cal/day) in your typed answer since Canvas doesn't understand answers with units. ou Answered orrect Answers Unanswered 337.5 (with margin: 10) Question 5 0 / 10 pts In an ecosystem, the total amount of energy contained in all of the primary producers is less than the total amount of energy contained in all of the primary consumers. orrect Answer Unanswered False Question 6 0 / 10 pts Which of the following are examples of K-adapted species? Select ALL that apply: 3/6 orrect Answer orrect Answer Unanswered Humans Elephants Question 7 0 / 10 pts A population of deer starts with a population of 420. This population experiences exponential growth over the next 5 years at a growth rate of 5.5% per year. What is the final deer population after 5 years? Note: do not include units (deer individuals) in your answer since Canvas can't interpret units; just type in the number. ou Answered orrect Answers Unanswered 553 (with margin: 1) Question 8 Carrying capacity refers to the maximum 0 / 10 pts orrect Answer Unanswered number of a species that can be supported by the environment. Question 9 0 / 10 pts When a population overshoots its carrying capacity, resources become limited and death rates rise. orrect Answer Unanswered True Question 10 0 / 10 pts The conservation of matter principle is that matter orrect Answer Unanswered can neither be created nor destroyed Question 11 0 / 10 pts Nutrients that flow into the Mississippi River and out into the Gulf of Mexico creating a dead zone. These nutrients come primarily from the following sources (Select ALL that apply): orrect Answer orrect Answer fertilizers running off of farms manure from livestock farming

Quiz 2 Understanding Our Environment Answer Key

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