Scin 140 Final Exam Answers

SCIN 140 Final Exam Answers
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Final Exam Chapter 1-18

Part 1 of 1 – 94.0/ 100.0 Points

Question 1 of 50 2.0/ 2.0 Points
Which of the following is the best definition of a biome?


A.A distinct aquatic ecosystem, surrounded by wetlands and terrestrial upland.
B.A large distinct terrestrial region similar climate, soil, organisms, regardless of its global location.
C.One of several types of forests occurring across the globe.
D.A natural association that consists of all the populations of different species that live and interact together within an area at the same time.



Question 2 of 50 2.0/ 2.0 Points
Which set of three parameters has the MOST effect on biome distributions?


A.latitude, longitude, precipitation
B.precipitation, longitude, temperature
C.temperature, latitude, climate
D.latitude, precipitation, temperature



Question 3 of 50 2.0/ 2.0 Points
Which zone of the lake is indicated by the letter “A” in the diagram shown?


A.Profundal
B.Limnetic
C.Abyssal
D.Littoral



Question 4 of 50 2.0/ 2.0 Points
Which of the following BEST defines ecosystem services?


A.Important environmental benefits provided by ecosystems
B.Environmental services that humans invest in conserving ecosystems
C.Environmental activities that are unique to each ecosystem or biome
D.Economic use of ecosystems as sinks

Question 5 of 50 2.0/ 2.0 Points
In order for the growth rate to remain constant what must happen to the birth rate?


A.It must equal zero
B.It must decline
C.It needs to be less than emigration
D.It must equal the death rate



Question 6 of 50 0.0/ 2.0 Points
What is the cause of global human population growth over the last 200 years?


A.Higher birth rate
B.Higher fecundity rate
C.Increase in immigration.
D.Lower death rate



Question 7 of 50 2.0/ 2.0...