Cladograms

What is a cladogram used for?

• To cook food

• To measure time

• To guess how organisms are related

• To predict the weather

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In a cladogram, what does a branching point represent?

• A common ancestor

• A new species

• A weather change

• A food source

What principle suggests that the simplest explanation is usually the best?

• Newton's law

• Pythagorean theorem

• Occam's razor

• Theory of relativity

What is now used to create more accurate cladograms?

• Cooking recipes

• DNA and genetics

• Physical characteristics

• Weather patterns

What do homologous DNA structures indicate?

• A shared food source

• A common ancestor

• A similar habitat

• A shared language