Taxonomy (DOLT) Flashcards

1
Q

Three domains

A
  1. Eukaryota (membrane bound organelles)
  2. Bacteria (prokaryotic cells)
  3. Archaebacteria (prokaryotic cells)
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2
Q

Carl Linnaeus

A

Swedish
1700s
Taxonomy system and binomial nomenclature
12,000 species categorized

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3
Q

Taxonomy

A
Kingdom
Phylum
Class
Order
Family
Genus Species
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4
Q

Species definition

A

A group of organisms that can produce viable and fertile offspring

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5
Q

Requirements for mating different species

A

Not done naturally
Must be from same genus
Do not produce viable and fertile offspring
ex. mule

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6
Q

Dichotomous keys

A

Series of questions based on physical characteristics that categorize organisms into smaller and smaller groups
Questions can only have two answers

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7
Q

Phylogenic trees

A

Evolutionary story
Show ancestral relations
Prove all living things are related

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8
Q

Phylogenic relationships

A

how closely one organism is to another on a tree

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9
Q

Cladograms

A

Type of phylogenic tree
Show latest common denominators
Qualitative
Show divergences

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10
Q

Phylogenic divergence

A

When one species becomes two because of selective pressures

ex. Darwin’s finches

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11
Q

Eukaryota

A

4 kingdoms:

  1. Animalia (multicellular, heterotrophic)
  2. Plantae (multicellular, autotrophic)
  3. Fungi (multicellular and unicellular, absorptive heterotrophs)
  4. Protista (mostly unicellular, auto and heterotrophic)
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12
Q

Absorptive heterotrophs

A

Digest food externally

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13
Q

Prokaryota

A

2 domains:

  1. Archaea
  2. Bacteria
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14
Q

Archaebacteria

A

Unicellular, heterotrophic

“extremophiles”

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15
Q

Eubacteria

A

Unicellular, auto and heterotrophic

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