Taxonomy 5 Flashcards

1
Q

involves describing, naming, and classifying organisms (the oldest branch of plant study)

A

Taxonomy

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2
Q

a system of naming objects

A

nomenclature

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3
Q

a taxonomic group at any level in the hierarchical system

A

taxon

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4
Q

includes all the descendants of a particular common ancestor + the ancestor itself

A

monophyletic group

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5
Q

binomial system

A

-Only one correct scientific name for a species
-Many common names may be given to the same species in the same language and in different
languages

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6
Q

binomial system species name

A

all living organisms given two-word Latin scientific name

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7
Q

published species plantarum

A

Carolus Linnaeus (1707-1778)

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8
Q

Linnaeus

A

-Developed Latin names for organisms
-Abbreviated names to two parts (binomials)
-Placed one to many species in each genus

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9
Q

varieties that arise from human activities

A

cultivars

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10
Q

what happens if species has cultivars or varieties?

A

their names consist of 3 parts

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11
Q

rules that govern the naming and classification of wild species

A

International Code of Botanical Nomenclature

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12
Q

rules that govern the naming and classification of cultivated plants

A

International Code of Nomenclature for Cultivated Plants

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13
Q

Rules for naming a new species:

A
  1. Unique name and description must be published 2. A type specimen of the new taxon must be
    deposited in an herbarium and available for stud
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14
Q

Starting point for naming vascular plants

A

is Species Plantarum

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15
Q

what is a preserved (dried) plant that is typically deposited in an herbarium called

A

A type specimen

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16
Q

what is used to aid in the identification of organism

A

a key

17
Q

Most keys are
meaning?

A

-dichotomous
-meaning user presented with pair of choices for character states of feature of organism

18
Q

hierarchical system
and where are greater similarities

A

Kingdom -> Phylum -> Class -> Order -> Family -> Genus > Species -> (subspecies)/(variety)
Greater similarity at lower classification levels

19
Q

a set of individuals closely related by descent from a common ancestor

A

species

20
Q

Closely related species are grouped together into

A

Genera, or Genus singular

21
Q

origin of life

A

3.5 billion years ago

22
Q

what happened 1.5- 2 bya?

A

prokaryote into a eukaryote

23
Q

how did numberous evolutionary lines emerge from eukaryotes?

A

eukaryotes evolved to have mitochondria, endoplasmic reticula, and true nuclei

24
Q

how many eukaryote species

A

9 million eukaryotic species; only a fraction of these is currently named and categorized

25
Q

name domains(3)

A

Domain Archaea
Domain Bacteria
Domain Eukarya

26
Q

name kingdoms(6)

A

Domain Archaea
Kingdom Archaebacteria
Domain Bacteria
-Kingdom Eubacteria
Domain Eukarya
-Kingdom Protista
-Kingdom Fungi
-Kingdom Plantae
-Kingdom Animalia

27
Q

Cyanobacteria

A

-Have chlorophyll a, produce oxygen, some fix nitrogen!
-As oxygen accumulated, other photosynthetic organisms appeared and forms of aerobic respiration developed

28
Q

-Symbiotic with cyanobacteria

A

Amoebae, sea anemones, fungi

29
Q

-Chloroplasts may have originated as

A

cyanobacteria living within other cells.

30
Q

what tries to answer the question of organisms sharing a common ancestor

A

phylogenetic trees, that constantly evolve themselves

31
Q

Charles Darwin on how life started

A

descended from common ancestor

32
Q

Monophyletic groups

A

(clades = valid
groupings)

33
Q

polyphyletic groups

A

more than one common evolutionary ancestor or ancestral group and therefore not suitable for placing in the same
taxon
too many

34
Q

Paraphyletic groups

A

Descended from a common evolutionary ancestor or ancestral group, but not
including all the descendant groups).