ecology Flashcards

1
Q

biome

A

large group of ecosystem with a similar climate

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2
Q

ecosystem

A

all living and non-living components of an area

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3
Q

community

A

all various populations in an area that interact

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4
Q

population

A

group of the same species interbred

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5
Q

species

A

include all similar organisms which can interbred and produce viable offspring

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6
Q

ecology

A

study of interactions amoung organisms and their environment

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7
Q

abiotic

A

non living

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8
Q

biotic

A

living

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9
Q

aquatic ecosystems

A

oceans lakes streams wet lands

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10
Q

terrestrial ecosystems

A

land based

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11
Q

biodiversity

A

variety of organisms in an ecosystem

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12
Q

organism

A

signle living thing w in an ecosystem

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13
Q

habitat

A

where an organism maintains food shelter moister and temp levels that it needs

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14
Q

niche

A

unique job or role

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15
Q

energy flow

A

transfer of energy from one organism to another

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16
Q

energy pyramid

A

shows the direction that energy flows and each level on the pyramid is called a tropic level

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17
Q

what is at the bottom of an energy pyramid

A

producers

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18
Q

what is 2nd on the energy pyramid

A

consumers

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19
Q

symbiosis

A

when organisms have close relashinships w others in an ecosystem

20
Q

mutalism

A

when both organisms benifit

21
Q

parasitism

A

one organism is helped, the other is harmed

22
Q

commensalism

A

1 organism benefits and there no harm for the other one

23
Q

geographic distrribution

A

range of the population
- the term that describes the area that is inhabited by the population

24
Q

what does dynamic mean

A

they change in size and composition over time

25
Q

what are the 3 factors that determaine population

A

of birth,death, individuals that leave + enter

26
Q

exponential

A

when the graph increasingly goes up

27
Q

logistic

A

when the graph may his carrying capacity

28
Q

producers( autotrophs)

A

rely on suns energy, water, co2 to create glucose and oxygen

29
Q

consumers (heterotrophs)

A

use oxygen and glucose and place co2 and water back into the atmosphere

30
Q

biochemical cycles

A

when elements, chemical compounds etc. are passed from one organism to another from one part of biosphere to another
- water carbon, nitrogen, phosphorus cycles

31
Q

water cycle

A

Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.

32
Q

what is steos in the carbon cycle

A

Carbon enters the atmosphere via carbon dioxide.
2. Carbon dioxide is absorbed and used as energy.
3. Carbon compounds enter the food chain.
4. Carbon reenters the atmosphere via decomposition.
5. The carbon cycle repeats

33
Q

steps on nitrogen cycle

A

Nitrogen fixation
Nitrification
Assimilation
Ammonification
Denitrification

34
Q

nitrogen cycle: Nitrogen fixation

A

the process by which nitrogen is taken from its molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other biochemical processes.

35
Q

nitrogen cycle:Nitrification

A

the biological conversion of ammonia or ammonium to nitrite or nitrate.

36
Q

nitrogen cycle:Assimilation

A

process by which inorganic nitrogen compounds are used to form organic nitrogen compounds

37
Q

nitrogen cycle: Ammonification

A

When an organism excretes waste or dies, the nitrogen in its tissues is in the form of organic nitrogen

38
Q

nitrogen cycle: Denitrification

A

the process that converts nitrate to nitrogen gas, thus removing bioavailable nitrogen and returning it to the atmosphere.

39
Q

phrospurs cycle

A

Weathering.
Fertilizer. -Soil. -Direct Runoff.
Excretion and Decomposition.
Dissolved Phosphates (generally in ocean)
Geologic Uplift.

40
Q

what is the human impact

A

carbon cycle- burning fossil fuels increase the amount of co2 in it which is too much to hold
nitrogen/phrospurs cycle- fossil fuels+ fertilizer= severe altercations
nitrogen- increase in harmful algal blooms

41
Q

ecological succession

A

process of ecoglogical change in an ecosystem where one community overtime

42
Q

primary succession

A

when a community forms in an area that was inhabited

43
Q

pioneer species

A

first organisms to grow/arrive in an area

44
Q

secondary succession

A

when an area was occupied but got destroyed

45
Q
A