Term
| define phenotypic plasticity: |
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Definition
| Phenotypic plasticity is the ability of an organism to respond to different environmental signals by altering its morphology or physiology. |
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Term
| What are some physical characteristics of sun leaves? |
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Definition
| Sun leaves generally are thicker than shade leaves, have shorter petioles, less leaflets per leaf, less distance between leaflets, and a more dense branching habit. |
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Term
| What are some physical characteristics of shade leaves? |
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Definition
| Shade leaves typically are larger and thinner than sun leaves, have longer petioles, more leaflets, more distance between leaflets, and a sparser branching habit. |
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Term
| What are the two types of developmental plasticity? |
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Definition
-phase change
-seasonal heteromorphism |
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Term
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Definition
| Phase change is phenotypic plasticity that takes place over the lifetime of a plant. |
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Term
| define seasonal heteromorphism: |
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Definition
| Seasonal heteromorphism is phenotypic plasticity that develops depending on seasonal influences and can change year to year. |
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Term
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Definition
| Clinal variation is a gradual change in a physical feature in a plant across geography. |
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Term
| define ecotypical variation: |
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Definition
| Ecotypical variation is a distinct population or form resulting from a distinct ecological condition. |
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Term
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Definition
| Hybrid zones are geographical areas where two distinctly different forms of an organism contact each other and interbreed to form an intermediate form. |
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Term
| define speciational variation: |
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Definition
| Speciational variation is when populations become isolated and diverge to form separate species. |
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