A deck of flashcards for Undergraduate Study of Biology. Source: Wikipedia
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| What are the two main species concept? | show 🗑
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| show | Simple judgement according to appearance/phenotypic traits. However, may be found invalid.
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| Biological species concept | show 🗑
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| Reproductive Isolating Mechanisms (RIM) | show 🗑
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| show | Prezygotic and Postzygotic RIMs.
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| show | It prevents zygote production through 5 isolation. Habitat/ecological isolation (reduced encounters), temporal isolation (mating periods), behavioral isolation (attraction), mechanical isolation (structural) and gametic isolation (incorrect chemicals).
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| Postzygotic RIMs | show 🗑
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| show | Allopatric and sympatric speciation.
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| Allopatric speciation | show 🗑
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| show | The reproductive isolation within the area of the parent population (different preference/trends).
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| What are the 2 ways geographical barriers may arise? | show 🗑
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| Adaptive radiation | show 🗑
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| show | Ecological methods and sexual selection methods, and polypoidy (in plants).
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| show | Tendency for individuals with a dependency on a particular lifestyle/food source to mate with similar individuals. This may cause RIMs over time.
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| show | The preference in mates with specific morphology.
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| show | When an organism has more than the normal number of sets of chromosomes. There are two types, autopolyploids and allopolyploids.
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| Autopolyploids | show 🗑
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| show | Where it produces a sterile hybrid but produce asexually (between two species). Only one meiotic error, hybrid produce asexually reproduces to produce a viable fertile hybrid.
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| Anagenesis | show 🗑
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| Cladogenesis | show 🗑
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| show | It may occur gradually or rapidly. Unmeasurable.
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| show | Gradualism model and the punctuated equilibrium models.
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| show | Difficult to find evidence of as there is an incomplete fossil records.
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| Punctuated equilibrium model | show 🗑
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| Extinction | show 🗑
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| Extant | show 🗑
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| show | Where an extinction of a species comes a rise in a new species.
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| What are the 2 rates of extinction? | show 🗑
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