Biology 1.1 Classification
- Created by: its.ulfaaa
- Created on: 24-11-18 17:00
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- Classification
- science of placing organisms into categories on the basis of observable characteristics
- taxonomists study classification
- need for classification
- so many different types of organisms so impossible to study without ordered way of classifying them
- classification keys
- series of questions that place organisms into groups
- dichotomous keys
- branched
- branches that look like staples take up space
- listed
- yes or no answer
- branched
- dichotomous keys
- derived from characteristics of living organisms based on morphology and anatomy
- series of questions that place organisms into groups
- classification keys
- understand evolutionary relationships
- common ancestors
- organisms with many of the same features accent from common ancestors
- common ancestors
- conservation
- scientists need to be able to identify organisms habitats that they manage and so they can control the organism
- so many different types of organisms so impossible to study without ordered way of classifying them
- Hierarchy of classification
- Carolus Linnaeus
- gave every living organism a binomial name (two part name) based on body structure of an organism
- binomial nomenclature = genus + species
- hierarchy of classification of a lion
- Kingdom = Animalia
- Phylum = chordata
- (vertebrates)
- Class = mammalia
- have fur and mammary glands
- Order = Carnivora
- carnassial - flesh cutting teeth
- Family = Felidae
- retractable claws
- Genus = Panthera
- Big Cats (can't purr but roar)
- Species = Panthera Leo
- mate and produce offspring with other members of species
- Phylum = chordata
- Kingdom = Animalia
- Carolus Linnaeus
- newly discovered species
- classified based on characteristicsof...
- protein structure
- where an organism shares a more recent ancestor they are closely related
- this can be seen in amino sequences in proteins Haemoglobin
- where an organism shares a more recent ancestor they are closely related
- DNA structure
- closely related organisms have similar base sequences in DNA as
- there as been less evolutionary time for mutation to change these base sequences
- humans and chimpanzees share 98.6% of their genes
- there as been less evolutionary time for mutation to change these base sequences
- closely related organisms have similar base sequences in DNA as
- protein structure
- classified based on characteristicsof...
- science of placing organisms into categories on the basis of observable characteristics
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