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Biology A/S Unit 2 > Classification > Flashcards

Classification Flashcards

1
Q

How do you classify if an organism is alive/extinct?

A

Phylogenetic tree

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2
Q

what does LUCA stand for

A

last universal common ancestor

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3
Q

What is Classification?

A

Dividing living organisms into groups based on their evolutionary relationships.

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4
Q

What is another word for group?

A

Taxon

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5
Q

What are the taxonomic groups?

A
  • Kingdom
  • Phylum
  • Class
  • Order
  • Family
  • Genus
  • Species
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6
Q

What are the five kingdoms?

A

Prokaryotes
Animalia
Plantae
Fungi
Protocista

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7
Q

What type of nature does classification have?

A

Tentative

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8
Q

What type of name does every species have?

A

Binomial

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9
Q

What are the characteristics of prokaryotes?

A
  • No nucleus
  • No membrane bound organelles
  • 70S ribosomes
  • Circular DNA
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10
Q

What are the characteristics of prokaryotes?

A
  • No nucleus
  • No membrane bound organelles
  • 70S ribosomes
  • Circular DNA
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11
Q

What are the characteristics of animalia?

A
  • multicellular
  • No cell wall
  • linear chromosomes
  • nervous co-ordination
  • 80S ribosomes
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12
Q

What are the characteristics of plantae?

A
  • multicellular
  • photosynthetic
  • contains chloroplasts
  • cell wall of cellulose
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13
Q

What are the characteristics of plantae?

A
  • multicellular
  • photosynthetic
  • contains chloroplasts
  • cell wall of cellulose
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14
Q

What are the characteristics of fungi

A
  • cell wall made of chitin
  • reproduce by spores
  • heterotrophic
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15
Q

What are the characteristics of fungi?

A
  • cell wall made of chitin
  • reproduce by spores
  • heterotrophic
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16
Q

What are the characteristics of protocista?

A
  • unicellular
  • different from the rest
  • algae have no tissue differentiation
17
Q

What is niche?

A

The role an organism plays

18
Q

What happens if two species occupy the same niche?

A

One of the species will have to die/migrate

19
Q

What are the three domains?

A
  • Eubacteria
  • Archaea
  • Eukaryotes
20
Q

What are the two different types of evolution?

A

Divergent and Convergent

21
Q

What are the two different types of evolution?

A

Divergent and Convergent

22
Q

Traits of divergent evolution are:

A
  • Pentadactyl limbs
  • Homologous structure
  • RECENT common ancestor
23
Q

Traits of convergent evolution are:

A
  • Analogous structures
  • NO RECENT common ancestor

Biology A/S Unit 2 (1 decks)

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