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Science Vocabulary

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