The graph below shows the population of three different families of marine organisms along five different mass extinction events. Each colour on the graph represents a family of organisms, and the Y axis shows how many species belong to that family. a. What stage of population growth is displayed at point ‘0’ on the graph above? b. The Extinction Event that occurred at point 3 was particularly significant. Using the graph, explain how this event impacted each marine family. c. The extinction events mapped above had significant impact on marine life. What type of event could have a similar impact on the human population?
The graph below shows the population of three different families of marine organisms along five different mass extinction events. Each colour on the graph represents a family of organisms, and the Y axis shows how many species belong to that family. a. What stage of population growth is displayed at point ‘0’ on the graph above? b. The Extinction Event that occurred at point 3 was particularly significant. Using the graph, explain how this event impacted each marine family. c. The extinction events mapped above had significant impact on marine life. What type of event could have a similar impact on the human population?
Chapter18: Life's Origin And Early Evolution
Section: Chapter Questions
Problem 2SA: The first interval of Earths existence is called the ________. a. Cambrian c. Proterozoic eon b....
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The graph below shows the population of three different families of marine organisms along five different mass extinction events. Each colour on the graph represents a family of organisms, and the Y axis shows how many species belong to that family.
a. What stage of population growth is displayed at point ‘0’ on the graph above?
b. The Extinction Event that occurred at point 3 was particularly significant. Using the graph, explain how this event impacted each marine family.
c. The extinction events mapped above had significant impact on marine life. What type of event could have a similar impact on the human population?
Transcribed Image Text:Cambrian
Paleozoic
Mesozoic - Cenosoic
phase
phase
phase
900 -
34
2
600-
300-
Md
Pz
Cm
V
Cm
D
P Tr J
K
Paleozoic
Mesozoic
Cz
600
400
200
Geologic Time (mya)
Number of Marine Familes
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