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82) The oldest fossilized remains of organisms are primitive ________ bacteria recovered from
rocks formed on the sea floor about 3.5 billion years ago.
A) photosynthetic
B) chemosynthetic
C) heterotrophic
D) streptococcus
Bloom's Taxonomy: Remembering/Understanding
Section: 1.7 Did Life Begin in the Oceans?
Essent'l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
83) Earth's atmosphere became oxygen rich about 2.45 ________ years ago.
A) billion
B) million
C) trillion
D) thousand
Bloom's Taxonomy: Remembering/Understanding
Section: 1.7 Did Life Begin in the Oceans?
Essent'l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
84) The great oxidation event resulted in the massive die-off of which of the following?
A) Anaerobic bacteria
B) Blue-green algae
C) Dinosaurs
D) Land plants
Bloom's Taxonomy: Remembering/Understanding
Section: 1.7 Did Life Begin in the Oceans?
Essent'l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
31
85) Trilobites were dominant during which geologic period?
A) Jurassic
B) Permian
C) Devonian
D) Ordovician
E) Cambrian
Answer: E
Diff: 3
Bloom's Taxonomy: Applying/Analyzing
Section: 1.8 How Old Is Earth?
Essent'l Concept: 1.8 Demonstrate an understanding of how old Earth is
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
1.3 Essay Questions
1) Distinguish between an ocean and a sea.
Bloom's Taxonomy: Remembering/Understanding
Section: 1.1 How Are Earth's Oceans Unique?
Essent'l Concept: 1.1 Compare the characteristics of Earth's oceans
OSLP: 1 The Earth has one big ocean with many features.
2) List some of the major achievements of Captain James Cook.
Bloom's Taxonomy: Remembering/Understanding
Section: 1.2 How Was Early Exploration of the Oceans Achieved?
Essent'l Concept: 1.2 Discuss how early exploration of the oceans was achieved
OSLP: 1 The Earth has one big ocean with many features.
32
3) Differentiate between a hypothesis and a theory.
Bloom's Taxonomy: Applying/Analyzing
Section: 1.4 What Is the Nature of Scientific Inquiry?
Essent'l Concept: 1.4 Describe the nature of scientific inquiry
Global Sci Out: 1
4) Contrast oceanic and continental crust.
Bloom's Taxonomy: Applying/Analyzing
Section: 1.5 How Were Earth and the Solar System Formed?
Essent'l Concept: 1.5 Explain how Earth and the solar system were formed
Global Sci Out: 1
5) Describe how the half-live of radioactive elements can be used to determine the age of rock
through radiometric dating.
Bloom's Taxonomy: Remembering/Understanding
Section: 1.7 Did Life Begin in the Oceans?
Essent'l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
33
6) Discuss advances in oceanographic navigation occurring over the course of human history.
Bloom's Taxonomy: Remembering/Understanding
Section: 1.2 How Was Early Exploration of the Oceans Achieved?
Essent'l Concept: 1.2 Discuss how early exploration of the oceans was achieved
OSLP: 1 The Earth has one big ocean with many features.
7) Discuss the origin of the Solar System using the nebular hypothesis.
Bloom's Taxonomy: Remembering/Understanding
Section: 1.5 How Were Earth and the Solar System Formed?
Essent'l Concept: 1.5 Explain how Earth and the solar system were formed
8) Discuss the origin of Earth's oceans and how is it related to the origin of our atmosphere.
Bloom's Taxonomy: Remembering/Understanding
Section: 1.6 How Were Earth's Atmosphere and Oceans Formed?
Essent'l Concept: 1.6 Explain how Earth's atmosphere and ocean were formed
OSLP: 4 The ocean made Earth habitable.
34
9) Describe Stanley Miller's landmark experiment. How did the results of this experiment change
hypothesis regarding the evolution of life on Earth?
Bloom's Taxonomy: Applying/Analyzing
Section: 1.7 Did Life Begin in the Oceans?
Essent'l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
10) Explain why the presence of free oxygen in our atmosphere marks an important step in the
evolution of life on Earth.
Bloom's Taxonomy: Remembering/Understanding
Section: 1.7 Did Life Begin in the Oceans?
Essent'l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
35
1.4 Visual Questions
1)
Which of the following is Earth's rigid layer that includes the crust plus the topmost portion of
the mantle?
A) Asthenosphere
B) Inner core
C) Lithosphere
D) Mesosphere
E) Outer core
Bloom's Taxonomy: Applying/Analyzing
Section: 1.5 How Were Earth and the Solar System Formed?
Essent'l Concept: 1.5 Explain how Earth and the solar system were formed
36
2)
Which of the following represents Earth's plates that are involved in plate tectonic motion?
A) Asthenosphere
B) Inner core
C) Lithosphere
D) Mesosphere
E) Outer core
Bloom's Taxonomy: Applying/Analyzing
Section: 1.5 How Were Earth and the Solar System Formed?
Essent'l Concept: 1.5 Explain how Earth and the solar system were formed
37
