MATCHING Correctly Match the Definition with the Correct Geologic Time Period

question 20

Multiple Choice

MATCHING
Correctly match the definition with the correct geologic time period
-Devonian

• A)repeated advance and retreat of glaciers; evolution of humans; extinction of large mammals and birds; 0-2.6 mya
• B)continents begin to separate; diverse dinosaurs; first birds; first flowering plants; 145-200 mya
• C)extensive forests; amphibians dominate life on land; increase in diversity of insects; first reptiles; 300-360 mya
• D)further increases in diversity of marine invertebrates and vertebrates; plants and fungi begin to colonize land; mass extinction at end of period; 445-490 mya
• E)origin of life; photosynthesis causes oxygen content of Earth's atmosphere to increase; first eukaryotes; first multicellular organisms; 540 mya-3.8 bya
• F)continents near present positions; increased diversity of flowering plants, birds, mammals, and pollinating insects; 2.6-65 mya
• G)early dinosaurs; first mammals; mass extinction at end of period; 200-250 mya
• H)increase in diversity of land plants; first amphibians colonize land; mass extinction late in period; 360-415 mya
• I)large and relatively sudden increase in the diversity of animal life; increase in diversity of algae; first vertebrates; 490-540 mya
• J)flowering plants begin to dominate life on land; mass extinction at end of period, including extinction of the last dinosaurs; 65-145 mya
• K)continents come together to form Pangaea; reptiles dominate life on land by 265 mya; mass extinction at end of period; 250-300 mya
• L)increase in diversity of fishes; first hints of colonization of land by insects and other invertebrates; 415-445 mya

Analyze the causes and effects of the French Revolution on American politics and relationships with foreign powers.

Grasp the constitutional debates and disagreements over federal power and states' rights.

Recognize the impact of early U.S. foreign policies on domestic and international relations.

Understand the implications of the Louisiana Purchase on American expansion and politics.

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Definitions:

Experimental Group

The group in an experiment that receives the treatment or intervention, used to assess the treatment's effect.

Control Group

A group in an experiment or study that does not receive treatment by the researchers and is used as a benchmark to measure how the other tested subjects do.

Correlational Studies

A type of non-experimental research method in which a researcher measures two variables, understands and assesses the statistical relationship between them without any causal assumption.

Cause-and-Effect

A relationship where one event (the cause) makes another event happen (the effect).