Biodiversity Flashcards

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0
Q

The tool that shows the amount of needed organic material at each trophic level

A

Biomass pyramid

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1
Q

The variety of living organisms in an ecosystem

A

Biodiversity

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2
Q

The desire of people to surround themselves with natural landscapes and objects

A

Biophilia

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3
Q

Causes of habitat degradation

A
  1. Fragmentation
  2. Intro of nonnative species
  3. Overexploitation
  4. Pollution
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4
Q

When two groups of species adapt to each other within an ecosystem

A

Coevolution

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5
Q

One organism benefits and the other of unaffected

A

Commensalism

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6
Q

All living things in an area

A

Community

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7
Q

The reduction or elimination of one species in an environment because of the presence of another species that requires the same resources

A

Competitive exclusion

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8
Q

The struggle that occurs when two species in an ecosystem both require the same resources

A

Competition

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9
Q

Name for genetic characteristics that produce a protein that is not very functional

A

Deleterious alleles

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10
Q

Came up with the term biophelia

A

E.O. Wilson

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11
Q

Term used to describe when people are encouraged to travel to natural areas in ways that conserve those environments

A

Ecotourism

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12
Q

A graphical model of energy flow in a community

A

Energy pyramid

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13
Q

Lots of oxygen and an aquatic ecosystem due to a build up of bacteria that are caused by pollution

A

Eutrophication

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14
Q

Barnacles and Wales

A

Example of commensalism

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15
Q

Oxpecker and zebra

A

Example of mutualism

16
Q

Fleas and dogs

A

Example of parasitism

17
Q

The gradual loss of a population until a species no longer exist for 50 years

A

Extinction

18
Q

The problem that occurs when the rate of use of species by humans that outpaces the species reproduction rate

A

Extinction vortex

19
Q

The term for the ability of an individual to survive and reproduce

A

Fitness

20
Q

A single pathway of energy in an ecosystem

A

Food chain

21
Q

A series of food chains that are interconnected together

A

Food web

22
Q

The process of dividing up a large habitat into smaller subdivisions

A

Fragmentation

23
Q

The change in frequency of an allele that occurs within a population

A

Genetic drift

24
Q

The sum of all the alleles and their distribution within a species

A

Genetic variability

25
Q

Loss of habitat that results in loss of species

A

Habitat degradation

26
Q

Small areas on the earths surface but contain high percentages of all the earth living organisms

A

Hot spots

27
Q

The negative effect that homozygosity house on fitness one related organisms mate

A

Interbreeding depression

28
Q

The name for a single species that can have a dramatic effect of the structure of a community’s food web

A

Keystone species

29
Q

The symbiotic relationship in which both organisms benefit from the relationship

A

Mutualism

30
Q

The role an organism plays in it ecosystem

A

Niche

31
Q

The process by which an empty turn population is driven towards extinction because of a loss of genetic diversity increased ability it to the effects of density independent and interbreeding depression

A

Overexploitation

32
Q

Symbiotic relationship when one organism benefits and the other is harmed

A

Parasitism

33
Q

The relationship and which one organism survive sweat eating another organism

A

Predation

34
Q

The name for each step of a food chain in an ecosystem

A

Trophic levels