Eukaryotic, heterotrophic, multicellular, fertilised eggs develop in ball called blastula
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Modern classification system?
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
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Why do we use the binomial system of nomenclature for naming organisms?
- Different countries have different common names - Use of different languages - Better to have internationally accepted name
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Basics of binomial naming system
FIRST PART: Genus name with capital letter SECOND PART: Species with a lower case letter
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What's the dichotomous key?
Used to identify unknown species
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Classification systems used to be based on observable features...
But in more recent studies, we draw on a wider range of evidence to clarify relationships between organisms (fungi can't move - they're not animals).
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Biochemistry
Allowed us to look at DNA and RNA sequences to give us new information about things that appeared to be bacteria.
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How are Archea and Bacteria different?
Difference in DNA, RNA and lipid structure
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Similarities between Archea and Eukaryotes
Similar DNA replication mechanism, both have DNA proteins
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Difference in 3 domain 5 kingdom classification system?
Kingdoms on observable features and Domains on recent biochemical evidence. We look at presence of protein Cytochome C as it's a protein associated with respiration and most organisms carry that out. Similar protein sequence means fewer mutations.
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Other cards in this set
Card 2
Front
Define 'Natural Classification'
Back
Grouping living organisms based on evolutionary relationships
Card 3
Front
Define 'Taxonomy'
Back
Card 4
Front
Define 'Phylogeny'
Back
Card 5
Front
Difference between taxonomy and classification and phylogeny?
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