What is divergent evolution?
When a single species evolves into several distinct species.
What is adaptive radiation?
A type of divergent evolution where one species rapidly evolves into multiple species, each adapted to a different niche.
What causes divergent evolution?
Different environments or niches that select for different traits.
What does the branching diagram represent in divergent evolution?
One parent species splitting into multiple new species.
What is convergent evolution?
When unrelated species become increasingly similar in appearance as they adapt to similar niches.
Are convergent species closely related?
No. They look similar due to similar environments, not common ancestry.
Why does convergent evolution happen?
Because similar environments favor similar adaptations.
What does the inward‑pointing arrows show in convergent evolution?
Different parent species evolving to look more alike.
What is coevolution?
The process by which two species evolve in response to changes in each other over time.
What kind of species usually coevolve?
Species with close relationships, such as:
Predator & prey
Parasite & host
Pollinator & plant
Why does coevolution occur?
Because changes in one species create selection pressure on the other.
What does the balance image represent?
Two species evolving together, keeping each other in balance.
Which involves one species becoming many?
Divergent evolution
Which involves unrelated species becoming similar?
Convergent evolution
Convergent evolution
Coevolution
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How Do New Species Arise?12
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Bacteria, Species, & Extinction8
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Linnaean Taxonomy9
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Birth of the Earth & Early Life21
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Macroevolution7
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Rate of Evolution (Gradualism)8
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Rate of Evolution (Punctuated Equilibrium)10
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Patterns of Evolution15
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The Miller–Urey Experiment15
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Universal Common Ancestor (UCA)11
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Autotrophy & Atmospheric Change11
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Eukaryotic Cell Evolution (Endosymbiosis)11
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Multicellularity10
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last science test/major22
