10.4 & 10.5

biogeography

• study of the distribution of organisms around the world
• study of embryos and their development
• neither

Evidence of common ancestry among species does not come from many sources.

• True
• False

homologous structures

• features that are similar in structure but appear in different organisms and may have different functions
• features that perform a similar function but are not similar in origin
• small leftover organs or structures that had a function in an early ancestor

analogous structures

• features that are similar in structure but appear in different organisms and may have different functions
• features that perform a similar function but are not similar in structure
• small leftover organs or structures that had a function in an early ancestor

vestigial structures

• features that are similar in structure but appear in different organisms and may have different functions
• features that perform a similar function but are not similar in origin
• small leftover organs or structures that had a function in an early ancestor

What is the difference between homologous and analogous structures?

• nothing- they are the same
• homologous structures are features that are similar in structure; analogous have different structures.
• homologous have different structures; analogous have the same structures

The forelimbs of humans, bats, and moles are examples of

• homologous structure
• analogous structure
• vestigial structure

Bird wings and butterfly wings are examples of

• homologous structure
• analogous structure
• vestigial structure

Pelvic bones in whales are an example of

• homologous structure
• analogous structure
• vestigial structure

What were four lines of evidence Darwin used to support his argument for evolution?

• Adaptation, geography, evolution, and anatomy
• fossils, geography, vestigial, and embryology
• fossils, geography, embryology, and anatomy