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Biology I IP
Name: _______________________
Period: _____
Unit Vocabulary Review IP
Fossil
Analogous Structure
Camouflage
Embryo
Homologous Structure
Natural Selection
Vestigial Structure
Convergent Evolution
Directional Selection
Divergent Evolution
Stabilizing Selection
Morphology
Disruptive Selection
Speciation
Reproductive Isolation Cladogram
Allopatric
Sympatric
Evolution
Species
Match the vocabulary term in the table above with the phrase below that best defines it.
Each term will be used only once.
1. _____________________ When natural selection favors an extreme trait (ex. longer beaks)
2. _____________________ When an ancestral species evolves into multiple species
3. _____________________ When natural selection favors average individuals for a trait (ex. size)
4. _____________________ Body part of organisms which have similar function but do not share a
common ancestor
5. _____________________ Evolutionary pattern in which distantly-related organisms evolve similar
traits
6. _____________________ A group of similar organisms that can mate and produce fertile offspring
7. _____________________ Body structure which no longer serves its original purpose
8. _____________________ Body parts that are similar due to a common ancestor
9. _____________________ Unborn/unhatched offspring that is developing
10. _____________________ When natural selection favors both extreme variations of a trait (ex. biggest
and smallest)
11. _____________________ Mechanism for change in populations proposed by Charles Darwin
12. _____________________ Change over time
13. _____________________ Evidence of an organism that lived long ago
14. _____________________ Occurs when a barrier (ex. river, cliff) divides a population and they can no
longer interbreed
15. _____________________ Adaptation that allows a species to blend in with its surroundings
16. _____________________ Pattern of evolution in which species that were once similar become
increasingly distinct
Biology I IP
Name: _______________________
Period: _____
17. _____________________ The study of the structure (shape) of living organisms
18. _____________________ Speciation that occurs due to a geographic barrier
19. _____________________ Diagram showing the evolutionary relationships between organisms
20. _____________________ Speciation that occurs due to factors other than geographic barriers