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Classification > Principles Of Classification > Flashcards

Principles Of Classification Flashcards

1
Q

What is the definition of biodiversity?

A

A measure of the variety of living organisms and their genetic differences

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2
Q

Why is classification important?

A

It is an internationally recognised system of classifying species and organisms

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3
Q

What is taxonomy?

A

The science of describing, classifying and naming living organisms

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4
Q

What method is used to make a valid classification?

A

Using homologous structures - structures which genuinely show common ancestry

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5
Q

What are the three main domains?

A

Archaea
Bacteria
Eukaryota

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6
Q

What are achaebacteria?

A

Ancient bacteria thought to be early relations to eukaryotes

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7
Q

How many kingdoms are in the bacteria domain?

A

1

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8
Q

How many eukaryotic kingdoms are there?

A

4

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9
Q

Name the eukaryotic kingdoms.

A

Protoctista
Fungi
Plantae
Animalia

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10
Q

What is the order from largest to smallest of the taxonomic groups?

A 
Domain
Kingdom 
Phylum 
Class
Order
Family 
Genus 
Species
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11
Q

What are protoctista?

A

Very diverse group of microorganisms

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12
Q

What is a heterotroph?

A

Something that eats other organisms as a food source

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13
Q

What is an autotroph?

A

Something that produces its own food via photosynthesis

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14
Q

Are protoctista heterotrophs or autotrophs?

A

Both

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15
Q

How do fungi gain food?

A

All are heterotrophs
Most are saprophytic
Some are parasitic

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16
Q

How do fungi differ from plants?

A

They have chitin cell walls not cellulose (plants)

17
Q

How do plantae gain their food?

A

Almost all are autotrophs

18
Q

How are animalia different to other eukaryotic kingdoms?

A

They move their entire bodies at least once in their life cycle

19
Q

How do animals gain their food source?

A

All heterotrophs

20
Q

How is an organisms named using the binomial system?

A

Each has 2 Latin names

21
Q

What are the rules of the binomial system?

A

1st name is genus always UPPER CASE first letter
2nd name is species always lower case first letter
Use italics

22
Q

What is the definition of evolution?

A

The process by which natural selection acts on variation to bring about adaptations and eventually specification l

23
Q

What is the definition of morphology?

A

The study of form and structure of organisms

24
Q

What are analogous features?

A

Features that look similar or have a similar function but are not from the same biological origin

25
Q

What are homologous features?

A

Structures that genuinely show common ancestry

Classification (1 decks)

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