science Flashcards

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1
Q

biosphere

A

includes all parts of earth in which life exsists

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2
Q

ecology

A

the study of natures organisms that live in those houses based on energy and nutrients

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3
Q

species

A

a group of similar organisms that can breed and produve fertile offspring

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4
Q

population

A

a group of individuals that belong to the same spicies and live in the same area

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5
Q

community

A

an assemblage of different populations that live together in a defined area

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6
Q

ecosystem

A

all the organisms that live in a place together with their physical environment

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7
Q

biotic factor

A

any living part of the environment with which an organism might interact

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8
Q

abiotic factor

A

any nonliving part of the environment such as sunlight, heat, precipitation, humidity, wind or water , and soil type

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9
Q

atmosphere

A

include all the gases that surround earth

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10
Q

hydrosphere

A

consists of all earth’s fresh water and salt water including water vapor and rain in the atmosphere, water underground and ice

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11
Q

geosphere

A

includes all the usually solid stuff rocks, continents and the ocean floor

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12
Q

climate

A

defined by patterns and averages of temperature, precipitation, clouds, and wind over many years

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13
Q

weather

A

short term changes in temperature, precipitation, clouds, and wind over many years

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14
Q

greenhouse effect

A

process in which certain gases trap sunlight energy in earth’s atmosphere as heat

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15
Q

biome

A

the homes of organisms into ten different regional climate communities

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16
Q

canopy

A

a dense leaf

17
Q

understory

A

shorter trees and vines form this layer

18
Q

humus

A

a material formed from decaying leaves and other organic matter

19
Q

taiga

A

boreal forests

20
Q

permafrost

A

a layer of permanentley frozen subsoil

21
Q

photic zone

A

the sunlit region near the surface in which photosynthesis can occur

22
Q

aphotic zone

A

below the photic zone where photosynthesis cannot occur

23
Q

plankton

A

a term that includes floating algae and animlas called zooplankton

24
Q

wetland

A

an ecosystem in which water either covers the soil or is present at or near the surface for at least part of the year

25
Q

estuary

A

a wetland formed where a river meets the sea