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
what are the 3 factors that determaine population
of birth,death, individuals that leave + enter
26
exponential
when the graph increasingly goes up
27
logistic
when the graph may his carrying capacity
28
producers( autotrophs)
rely on suns energy, water, co2 to create glucose and oxygen
29
consumers (heterotrophs)
use oxygen and glucose and place co2 and water back into the atmosphere
30
biochemical cycles
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
water cycle
Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.
32
what is steos in the carbon cycle
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
steps on nitrogen cycle
Nitrogen fixation Nitrification Assimilation Ammonification Denitrification
34
nitrogen cycle: Nitrogen fixation
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
nitrogen cycle:Nitrification
the biological conversion of ammonia or ammonium to nitrite or nitrate.
36
nitrogen cycle:Assimilation
process by which inorganic nitrogen compounds are used to form organic nitrogen compounds
37
nitrogen cycle: Ammonification
When an organism excretes waste or dies, the nitrogen in its tissues is in the form of organic nitrogen
38
nitrogen cycle: Denitrification
the process that converts nitrate to nitrogen gas, thus removing bioavailable nitrogen and returning it to the atmosphere.
39
phrospurs cycle
Weathering. Fertilizer. -Soil. -Direct Runoff. Excretion and Decomposition. Dissolved Phosphates (generally in ocean) Geologic Uplift.
40
what is the human impact
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
ecological succession
process of ecoglogical change in an ecosystem where one community overtime
42
primary succession
when a community forms in an area that was inhabited
43
pioneer species
first organisms to grow/arrive in an area
44
secondary succession
when an area was occupied but got destroyed
45