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evolution, sasta guide, practice test - Coggle Diagram
evolution
sucession
sucession is defined as the gradual changes that occur in the makeup / mix of communities over time or space
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organisms living in an environment cause changes to the habitat and these provide new opportunities for other organisms to colonise the area - changing the soil structure and providing mroe organic matter because of the presence of plants
glacier scraped bare rock and no soil nothing this is not as common - euruption of the volcano from nothing to volcanic rock
secondary = an ecosystem turns to a new ecosystem or it changes - this is a lot more common not starting from scratch scratch though
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early life
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rna was used as genetic information - code for proteins and ribozymes to catalyse chemical reactions
- rna 2. circular dna 3. nucleus dna linear
membranes were formed spontaneously as phospholipids in water for bilayer or micells forming a membrane
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comparative genomics
phylogenetic trees
the most closely related species are the species with the most common recent ancestor - the closest to the edge
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what is a gene pool: the sum of all alleles of all individuals in a population at a given point in time
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