The sorting of - Weeblygcsbio.weebly.com/uploads/5/3/2/5/5325438/taxonomy.pdf · •Similarities...
Transcript of The sorting of - Weeblygcsbio.weebly.com/uploads/5/3/2/5/5325438/taxonomy.pdf · •Similarities...
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The sorting of living organisms
into groups
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• The scientific naming of organisms using the binomial system
• This means giving each organism two names
• The genus name and the species name
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Example
Maple genus - Acer
Acer pseudoplatanus (sycamore)
Genus Species
Acer rubrus (red maple)
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Example
Big cat genus - Panthera
Panthera leo Panthera pardus
Panthera onca
Panthera tigris
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• Placing organisms in groups based on their similarities and differences
• Similarities between organisms may occur because they have evolved along the same lines eg the pentadactyl limb –All have the same basic structure
but different functions
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• Larger groups of organisms are divided into successively smaller groups
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• Kingdom – the broadest classification
• Phyla – contain many sub groups called
• Classes – which are broken down into
• Orders – formed from
• Families – groups consisting of similar
• Genera (plural of genus) – containing
groups of similar
• Species.
Num
bers d
ecre
ase
Sim
ilarities incre
ase
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• We can remember this as:-
• King Keep
• Potatoes Ponds
• Come Clean
• Only Or
• From Frogs
• Good Get
• Spuds! Sick
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The largest and most inclusive grouping
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A group of organisms constructed on a similar plan
Arthropoda
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A grouping of similar orders
Class Pisces
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Order pelecaniformes
A group of related families
Darter
Frigate bird
Pelican
Cormorant
Gannet
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A group of similar genera
Family Bovidae
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A group of species that are very closely related
Canis – (wolves and dogs)
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A group of similar individuals that can breed
freely to produce fertile offspring
Homo sapiens
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TAXON HUMAN HONEYBEE MUSHROOM
Kingdom Animalia Animalia Fungi
Phylum Chordata Arthropoda Basidiomycota
Class Mammalia Insecta Basidiomycetes
Order Primate Hymneoptera Agricales
Family Hominidae Apidae Agaricaceae
Genus Homo Apis Agaricus
Species sapiens mellifera campestris
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• Taxonomy classifies sets of species according to ancestral relationships
• Relationships between organisms are established according to a number of measurable features
» Morphology and anatomy –internal and external features
» Cell structure – are they prokaryotic or eukaryotic
» Biochemistry – comparisons of DNA, RNA and the amino acid sequences in proteins
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• Closely related organisms possess a high degree of agreement in the molecular structure of DNA, RNA and protein structure
• These molecules in distantly related organisms usually show a pattern of dissimilarity
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5 KINGDOMS
• Prokaryotae – single-celled prokaryotic organisms (bacteria).
• Protoctistae – single-celled eukaryotic organisms (protozoa and some algae).
• Fungi – eukaryotic organisms with non-cellulose cell walls (from yeast to toadstool).
• Plantae – eukaryotic photosynthetic organisms (including multicellular algae and plants)
• Animalia – non-photosynthetic, mulitcellular organisms with nervous co-ordination.
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Prokaryotae
• See prokaryotic cell structure
• Bacteria reproduce by asexual reproduction (division)
• The cell increases in size.
• A double wall develops across the midline of the enlarged cell.
• The cell separates into two cells at the midline wall.
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Prokaryotae
• They feed in a number of ways
• Some are lysotrophs (decomposers)
• Some are parasitic
• Some are photosynthetic (autotrophs)
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Protoctistae
• They are eukaryotic
• They are unicellular
• Some are heterotrophs – Phlyum Protozoa -
• Some are autotrophs (photosynthesize) – Phylum Chlorophyta
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Amoeba spp.
Phlyum Protozoa
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Paramecium
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Volvox
Phylum Chlorophyta
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Chlamydomonas
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Fungi
• eukaryotic
• lysotrophs (decomposers/saprotrophs)
• Cell walls made of chitin
• Bodies composed of masses of filaments called hyphae which are not divided into separate cells
• extracellular digestion (secrete enzymes onto organic matter to digest the food and then absorb the soluble products back inside)
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digestive enzymes
breakdown food
long strands of cells
called hyphae
How fungi feed
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Plantae
• eukaryotic
• autotrophic (producers)
• They possess chlorophyll in chloroplasts in which glucose is synthesised by process of photosynthesis
• cell wall made of cellulose
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Animalia
• They are eukaryotic
• They are heterotrophs – cant make own food
• Food is ingested into the gut cavity
• Digestion is extracellular
• Animals are capable of locomotion
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TAXON HUMAN HONEYBEE MUSHROOM
Kingdom Animalia Animalia Fungi
Phylum Chordata Arthropoda Basidiomycota
Class Mammalia Insecta Basidiomycetes
Order Primate Hymneoptera Agricales
Family Hominidae Apidae Agaricaceae
Genus Homo Apis Agaricus
Species sapiens mellifera campestris
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TAXON HUMAN HONEYBEE MUSHROOM
Kingdom Animalia Animalia Fungi
Phylum Chordata Arthropoda Basidiomycota
Class Mammalia Insecta Basidiomycetes
Order Primate Hymneoptera Agricales
Family Hominidae Apidae Agaricaceae
Genus Homo Apis Agaricus
Species sapiens mellifera campestris
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TAXON HUMAN HONEYBEE MUSHROOM
Kingdom Animalia Animalia Fungi
Phylum Chordata Arthropoda Basidiomycota
Class Mammalia Insecta Basidiomycetes
Order Primate Hymneoptera Agricales
Family Hominidae Apidae Agaricaceae
Genus Homo Apis Agaricus
Species sapiens mellifera campestris
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TAXON HUMAN HONEYBEE MUSHROOM
Kingdom Animalia Animalia Fungi
Phylum Chordata Arthropoda Basidiomycota
Class Mammalia Insecta Basidiomycetes
Order Primate Hymneoptera Agricales
Family Hominidae Apidae Agaricaceae
Genus Homo Apis Agaricus
Species sapiens mellifera campestris
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TAXON HUMAN HONEYBEE MUSHROOM
Kingdom Animalia Animalia Fungi
Phylum Chordata Arthropoda Basidiomycota
Class Mammalia Insecta Basidiomycetes
Order Primate Hymneoptera Agricales
Family Hominidae Apidae Agaricaceae
Genus Homo Apis Agaricus
Species sapiens mellifera campestris
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TAXON HUMAN HONEYBEE MUSHROOM
Kingdom Animalia Animalia Fungi
Phylum Chordata Arthropoda Basidiomycota
Class Mammalia Insecta Basidiomycetes
Order Primate Hymneoptera Agricales
Family Hominidae Apidae Agaricaceae
Genus Homo Apis Agaricus
Species sapiens mellifera campestris