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16 Cards in this Set
- Front
- Back
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Four Physical Factors |
1. Temperature 2. Precipitation 3. Sunlight 4. Wind |
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How can we predict the effect of climate change on species distribution? |
Look at changes in temperate regions: - Fossil pollen found in lakes - winged vs. wingless seeds |
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Evidence of Evolution |
1. Anatomical homologies - same ancestry 2. Embryo Development - look the same as embryos 3. Vestigial Structure - remnants of features that once served a purpose 4. Fossil Records - similarities between land and sea 5. Biogeography - geographic distribution influenced by many factors |
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Endemic |
Species found no where else in the world |
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How do we measure evolution? |
Gene pool (genetic variation), allele frequency, and Hardy-Weinberg principle (pop. not evolving) |
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Five conditions for non-evolving populations |
1. No mutation 2. Random mating 3. No natural selection 4. Extremely large population 5. No gene flow |
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Alter Allele Frequency |
1. Natural Selection 2. Genetic Drift 3. Gene Flow |
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Founder Effect & Bottleneck Effect |
Bottleneck - sharp reduction in a population's size due to environmental events Founder - loss of genetic variability due to only a select few individuals produce a large population. |
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Mechanisms of control in reproduction |
- Habitat - Temporal - Behavioural - Mechanical - Gametic |
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Allopatric vs. Sympatric |
Allopatric (other country) - a population forms a new species while geographically isolated from it's parent group Sympatric (same country) - a subset population form a new species without geographic separation |
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Law of Segregation |
When any individual produces gametes, the alleles separate, so that each gamete receives only one member of the pair of alleles |
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What are the two processes in protein synthesis |
1. Transcription 2. Translation |
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Steps on Transcription |
1. Initiation 2. Elongation 3. Termination |
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Translation elongation steps |
1. Codon Recognition 2. Peptide Bond Formation 3. Translocation |
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Parts of the cardiovascular system |
Blood, heart and blood vessels |
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Types of tissues |
1. Epithelial 2. Connective 3. Muscle 4. Nervous |
