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Science Vocabulary

Author: Travis Boling
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Across
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Complete loss of a species
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Super continent
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Plants that produce seeds, not flowers
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The southern landmass of Pangaea
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Longest part of Earth's history and includes the Hadean, Archean, and Proterozoic eons
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Breeding of certain species by humans for desired traits
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Theory proposed by Charles Darwin to explain how species change over time; organsiums with suited characteristics have a better chance of survival
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Era of ancient life
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The era of middle life
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Shortest geological time unit
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Time unit characterized by types of life existing world-wide at the time
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The era we live in
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Fossil indicating that dinosaurs may have nurtured their young
Down
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Time unit based on major, striking, and world-wide changes in types of fossil presents
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3-segment-bodied organisms used as an index fossil
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Longest geological time unit; based on abundance of fossils
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Northern landmass of Pangaea
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Division of Earth's history into time units based on life forms that lived only during certain periods; consists of periods, epochs, eras, and eons
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Theory that species have changed over time
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Blue-green algae thought to be one of the earliest forms of life on Earth
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Flowering plants
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Group of organisms that normally reproduces with only other members of their group
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The scientific name for humas
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A giant landmass that formed at the end of the Paleozoic Era when the continents came together