Evolutionary History Vocabulary Review

Evolution is

• a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group

• the process of turning into a human

• the process by which species adapt to environmental changes over a very long time

• the process by which one population evolves into two or more different species

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A shared structure is

• a body structure in two or more species that features the same parts (for example, the same bones)

• sharing a common ancestor population

• a group of the same type of organism living in the same area

• an organism’s arm, leg, or wing

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NGSS.MS-LS4-2

A paleontologist is

• a scientist who studies weather

• a geologist

• a scientist who studies archaeology

• a scientist who studies fossils in order to understand the ancient history of life on Earth

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Speciation is

• the process by which one population evolves into two or more different species

• a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group

• when something stays mostly the same over time

• the process by which the distribution of traits in a population changes over many generations

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NGSS.MS-LS4-2

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Evolutionary time is

• the process by which species adapt to environmental changes over a very long time

• the very long time that spans the history of Earth, from the very first cellular life to the present

• having died out completely and no longer alive anywhere on Earth

• evidence of life from the past, such as fossilized bones, footprints, or leaf prints

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A descendant species is

• an older population from which two or more newer species descended

• everything (living and nonliving) that surrounds an organism

• a related organism from a previous generation

• a more recent species that evolved from an ancestor population

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An adaptive trait is

• a trait that is a harmful mutation

• a trait that makes it more likely that an individual will survive in a specific environment

• a trait that always shows up randomly and makes an organism stronger

• an adoption

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NGSS.MS-LS4-4

Which of these numbers is closest to the age of the earth?

• 4,600 years

• 460,000 years

• 46 million years

• 4.6 billion years

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Which is the best description of evolution?

• When organisms change for no clear reason

• When organisms change into new organisms

• When organisms change over time to adapt to their environments

• When organisms don't change over time

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What is a population?

• everything (living and nonliving) that surrounds an organism

• a group of individuals born and living at about the same time

• living things, such as plants, animals, and bacteria

• a group of the same type of organism living in the same area