Taxonomy Flashcards

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1
Q

What is Taxonomy + Their 2 main purposes

A

The science of classifying living things.
1. Identify
2. Relationships between each organism

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2
Q

Early Taxonomy

A
  • Aristotle
  • Ranks by Adv to most Gen
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3
Q

Present Taxonomic Systems

A
  • Carl Linnaeus
  • More features that R common between the organisms, the closer they are related.
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4
Q

What is rank

A

Level in classification

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5
Q

What is Taxon

A

The name of each rank

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6
Q

Levels of Classification

A

Domain (Prokaryote, Eukaryotes, Achaea)
Super Kingdom
Kingdom
Phylum
Class
Order
Family
Genus
Species

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7
Q

6 Kingdom system

A

Plantae
Animalia
Monera
Protista
Fungi
Archae Bacteria

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8
Q

What is the Phylogeny’s evolution system (classification)?

A
  1. / the organism into 2 groups … plantae & animalia
  2. Looked into microscope and saw that there were more organisms … Protista
  3. Found out that fungi was “plant like” but did not photosensitize … Fungi & Bacteria
  4. 1990’s new kingdom of specific bacteria in extreme environments was added … Archaebacteria
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9
Q

What did Carl von Linne do

A

He developed naming system for species

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10
Q

What is Binomial nomenclature

A
  • 2 word Latin name to each species
  • 1st part is genus, 2nd is species
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11
Q

What are Genus

A

Taxonomic group of species

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12
Q

What are Species

A

Organisms that can be interbreed in nature and can produce fertile offspring.

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13
Q

What is Morphology and their concept

A

The function and structure of the organisms.
- Focuses on morphology of an organism
- Realize on comparisons R completed –> scientist decide if similar organisms represent different species.

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14
Q

What is Phylogeny and their concept

A

The evolution history of a species.
- Focuses on the evolutionary relationships among organisms.
- Species is defined as a cluster of organisms that R diff from other clusters and shows a diff pattern of relationship among organisms.
Eg. When a prehistoric species branches into 2 species overtime = 2 diff phylogenic species.

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15
Q

What are the 3 species concepts called?

A
  1. Morphological Species
  2. Biolgical Species
  3. Phylogenetic Species
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16
Q

What is Biological Species and their concept

A

Whether 2 organisms can produce fertile offspring.
- Focuses on the similar characteristics and the ability for organisms to interbreed in nature to produce viable, fertile offspring.
- If 2 organisms mate natural = 2 individuals R the same species.

17
Q

Morphological Advantages/ Disadvantages

A

A:- Very simple, used for plants a lot.
D: - Deciding how much difference is between individuals is too much variation.

18
Q

Biological Advantages/ Disadvantages

A

A: - Used a lot.
D: - Can not be applied to all cases.
Eg. When 2 populations R physically separated, they cannot interbreed = no viable offspring test used.
- Cannot not be applied to organisms that reproduce asexually nor fossil species.

19
Q

Phylogenetic Advantages/ Disadvantages

A

A: - Applied to extinct species.
- Considers information about relationships among organism learned from DNA —> scientist R using this more!!!
Eg. it was through looking @ DNA, scientist were able to classify the pink iguana as a new species.
D: - Evolution histories R not known for all species.