Biology EOC 2019 Evolution Unit 9

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What is evolution?

Back

Evolution is the process by which different kinds of living organisms develop and diversify from earlier forms during the history of the earth.

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What is natural selection?

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a common ancestor?

Back

A common ancestor is an ancestral species from which two or more species have evolved.

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What are the main kingdoms of life?

Back

The main kingdoms of life are Animalia, Plantae, Fungi, and Protista.

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What is a dichotomous key?

Back

A dichotomous key is a tool that allows the identification of organisms through a series of choices that lead the user to the correct name of a given item.

Front

What is the significance of physical characteristics in classification?

Back

Physical characteristics are used in classification to group organisms based on observable traits, which helps in identifying and categorizing them.

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What are eukaryotic organisms?

Back

Eukaryotic organisms are organisms whose cells have a nucleus enclosed within membranes, unlike prokaryotes, which do not.

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What is the role of autotrophs in an ecosystem?

Back

Autotrophs are organisms that produce their own food through photosynthesis or chemosynthesis, serving as primary producers in an ecosystem.

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What is the difference between multicellular and unicellular organisms?

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Multicellular organisms are made up of multiple cells that work together, while unicellular organisms consist of a single cell.

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What is the importance of larval stages in development?

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Larval stages are crucial for the development of many organisms, allowing them to undergo significant changes before reaching maturity.