Species and Life Flashcards

(69 cards)

1
Q

species

A

general term used for each different type of organism

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2
Q

morphology

A

shape and structure

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3
Q

From the morphological standpoint, what is a species?

A

group that share distinctive anatomical characteristics

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4
Q

From the biological species concept, what is a species?

A

group capable of interbreeding and producing fertile young

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5
Q

phylogeny

A

evolutionary history of organism

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6
Q

From the phylogenetic species concept, what is a species?

A

smallest group of organism with similar features that come from a common ancestor

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7
Q

classification

A

process of sorting things based on similarities and differences

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8
Q

taxonomy

A

science of classification and naming organisms

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9
Q

Name the taxonomic hierarchy

A

domain, kingdom, phylum, class, order, family, genus, species

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10
Q

What is the two names system?

A

scientific name- genus and species with genus name capitalied

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11
Q

what are the two different classification systems for taxonomy?

A

artificial- appearance

natural- based on evolutionary history

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12
Q

What is it with domains?

A

new concept, compares sequences in ribosome RNA

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13
Q

What are the three domains?

A

bacteria, archaea, eukarya

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14
Q

Which are archaea closely related to?

A

bacteria

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15
Q

Which domains are the most abundant?

A

mass and number- bacteria and archaea

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16
Q

What are the four kingdoms?

A

protista, plantae, fungi, animalia

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17
Q

Where are bacteria and archaea?

A

everywhere

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18
Q

What is a bacterial spore?

A

resting stage of bacteria, allows survival in harsh conditions for some

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19
Q

Who coined the term binomial?

A

Linnaeus

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20
Q

What is the theory of enosymbiois?

A

origin of eukaryotic cells, developed from organelles, evidence: have DNA, chromosomes are circular like prokarytoes, cell division is by fission like prokarytoes

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21
Q

How many bats are there?

A

1100 bats= 1/5 of all mammals, diviersity 20%

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22
Q

What is ecology?

A

study of interaction of individuals of same species

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23
Q

community

A

interaction of multiple species

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24
Q

ecosystem

A

interaction of living and non-living components

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25
biosphere
interactions (human, global, weather, etc)
26
density
number of individuals of species in area
27
biotic potential
maximal rate of growth of species in ideal conditions
28
carrying capacity (k)
maximum number of individuals that environment can support over time without lasting damage to environment
29
density-dependent factors
factors that affect populations in proportion to density, this is become more forceful with increasing density
30
competition
use of limited resource by individual reduces availability to others
31
disease
spreading of contagious diseases works in this fashion (control population growth)
32
pollution
undesirable change that harmfully affects organisms
33
predation
feeding by organisms on others
34
density-independent factors
factors affecting population growth not dependent on number of individuals
35
What is a k-selected species?
species with stable population, efficient resource use, long lives, fewer offspring, parental care, slow reproductive rate
36
What is a r-selected species?
adapted for rapid reproduction and high densities, population crash, non efficient, short lives, many offspring, no parental care, quick reproductive rate
37
population age structure
graphs showing age distribution
38
What is community ecology?
populations of different species that interact as each individual pursues resources to survive and reproduce
39
intraspecific
same species (population ecology)
40
interspecific
different species (community ecology)
41
Name the six categories of interaction
mutualism, commensalism, neutralism, competition, predation, parasitism
42
mutualism
++, both species benefit from association
43
commensalism
+/0 one species benefits, other is neither harmed or benefits
44
neutralism
0/0, each species doe snot affect each other, don't really interact
45
competition
-/- use of same resources, interaction is negative for both population
46
predation
+/-, one kill sanothers
47
parasitism
+/- one species lives on but doesn't kill its host
48
niche
habitat, plus all abiotic and biotic resources required for survival (theoretical idea)
49
competitive exclusion
one species eliminates another
50
niche partitioning
species coexist if use of same resources in different ways
51
keystone species
species that disproportionately modifies environment and enriches it for others
52
Which is the most closely related living hominid?
chimpanzee
53
ecosystem
all living organisms in a community plus the non-living physical environment
54
Food chain
linear series of food and feeders
55
food web
complex interactions of many food chains
56
trophic level
position of species in food chain
57
producers
autotrohps, make food
58
consumers
heterotroph, eat others for food
59
primary consumer
herbivores
60
secondary consumer
eat herbivores
61
tertiary consumer
eat second level consumer, top carnivores
62
omnivore
consume plants and animals
63
detrivores
break down dead organic materials
64
decomposer
special type of detrivore, return organic matter into inorganic compounds
65
reservoir
storage of materials
66
What do soil bacteria do?
convert N2 in air for plants, "nitrogen fixing" bacteria in roots
67
What global factors affect climate?
earth is round, axis is tilted, energy varies from sun
68
What are the two groups of biomes?
terrestrial and aquatic
69
biological magnification
toxic substances get concentrated and more deadly as it moves up the food chain