Question
The graph shows one estimate for changes to the percent of oxygen in the atmosphere and major biological developments over time. The bands A, B, and C show information from the geologic record.
Information
A graph.Short description, A graph.,Long description,
The graph shows the percent of oxygen in the atmosphere from billions of years ago until today. The time periods are divided into bands A, B, and C that indicate geologic records. A line starts at about 4.5 billion years ago at 0.007 percent oxygen, increases, and ends today with about 20 percent oxygen in the atmosphere. 6 main biological developments are labeled on the line.
First cells formed about 4 billion years ago when there was about 0.01 percent oxygen in the atmosphere. This happens in band A, when no oxidized iron was found.
Oxygenic photosynthesis happened about 3 billion years ago when there was about 0.05 percent oxygen in the atmosphere. This happens between bands A and B, where oxidized iron bands started to appear in seabed rock.
Aerobic metabolism happened about 2 billion years ago when there was about 0.3 percent oxygen in the atmosphere. This happens in band C, where there are oxidized iron bands on land, and the ozone layer is forming.
Plants appeared about 1 billion years ago when there was about 3 percent oxygen in the atmosphere. This happens after bands A, B, and C.
Animals appeared about 0.5 billion years ago when there was about 10 percent oxygen in the atmosphere. This happens after bands A, B, and C.
Dinosaurs appeared about 0.25 billion years ago when there was about 15 percent oxygen in the atmosphere. This happens after bands A, B, and C.
Question
Which ,begin emphasis,two,end emphasis, statements explain the connection between the atmospheric, biological, and geological changes shown in the graph?
Answer options with 5 options
A.
Oxidation of iron in rocks steadily added oxygen and other nutrients to the atmosphere.
B.
The development of an oxygen-based ozone layer made it possible for life to evolve out of the water.
C.
Increased atmospheric oxygen levels enabled the development of modern plant and animal metabolic processes.
D.
Early oxygen levels were low because the earliest cells produced and recycled oxygen more efficiently than later cells.
E.
Oxygen levels first increased in the ocean because land organisms produced oxygen more slowly than marine organisms.
Information
A graph.Short description, A graph.,Long description,
The graph shows the percent of oxygen in the atmosphere from billions of years ago until today. The time periods are divided into bands A, B, and C that indicate geologic records. A line starts at about 4.5 billion years ago at 0.007 percent oxygen, increases, and ends today with about 20 percent oxygen in the atmosphere. 6 main biological developments are labeled on the line.
First cells formed about 4 billion years ago when there was about 0.01 percent oxygen in the atmosphere. This happens in band A, when no oxidized iron was found.
Oxygenic photosynthesis happened about 3 billion years ago when there was about 0.05 percent oxygen in the atmosphere. This happens between bands A and B, where oxidized iron bands started to appear in seabed rock.
Aerobic metabolism happened about 2 billion years ago when there was about 0.3 percent oxygen in the atmosphere. This happens in band C, where there are oxidized iron bands on land, and the ozone layer is forming.
Plants appeared about 1 billion years ago when there was about 3 percent oxygen in the atmosphere. This happens after bands A, B, and C.
Animals appeared about 0.5 billion years ago when there was about 10 percent oxygen in the atmosphere. This happens after bands A, B, and C.
Dinosaurs appeared about 0.25 billion years ago when there was about 15 percent oxygen in the atmosphere. This happens after bands A, B, and C.
Question
Which ,begin emphasis,two,end emphasis, statements explain the connection between the atmospheric, biological, and geological changes shown in the graph?
Answer options with 5 options
A.
Oxidation of iron in rocks steadily added oxygen and other nutrients to the atmosphere.
B.
The development of an oxygen-based ozone layer made it possible for life to evolve out of the water.
C.
Increased atmospheric oxygen levels enabled the development of modern plant and animal metabolic processes.
D.
Early oxygen levels were low because the earliest cells produced and recycled oxygen more efficiently than later cells.
E.
Oxygen levels first increased in the ocean because land organisms produced oxygen more slowly than marine organisms.
Answers
Answered by
GPT-4o mini
The two statements that explain the connection between the atmospheric, biological, and geological changes shown in the graph are:
**B.** The development of an oxygen-based ozone layer made it possible for life to evolve out of the water.
**C.** Increased atmospheric oxygen levels enabled the development of modern plant and animal metabolic processes.
These statements highlight how the increasing levels of oxygen influenced biological evolution and adaptation, particularly the role of oxygen in the formation of the ozone layer, which allowed for the colonization of land by life forms. Additionally, higher oxygen levels facilitated the development of metabolic processes in organisms.
**B.** The development of an oxygen-based ozone layer made it possible for life to evolve out of the water.
**C.** Increased atmospheric oxygen levels enabled the development of modern plant and animal metabolic processes.
These statements highlight how the increasing levels of oxygen influenced biological evolution and adaptation, particularly the role of oxygen in the formation of the ozone layer, which allowed for the colonization of land by life forms. Additionally, higher oxygen levels facilitated the development of metabolic processes in organisms.
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