APES 1.1-1.7 Flashcards

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165 Terms

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community

all living organisms in an area

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ecosystem

all living and nonliving things in an area (plants, animals, rocks, soil, water, air)

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biome

large area with similar climate conditions that determine plant and animal species there

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(tropical rainforest)

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individual

one organism (elk)

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population

group of individuals of same species (elk herd)

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mutualism

relationship that benefits both organisms

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(coral reef)

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commensalism

relationship that benefits one organism and doesn't impact the other

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(birds nest in trees)

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competition

organisms fighting over a resource like food or shelter; limits population size

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predation

one organism using another for energy source

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(hunters, parasites, herbivores)

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herbivores

(plant eaters) eat plants for energy

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(giraffe & tree)

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true predators

(carnivores) kill and eat prey for energy

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(leopard & giraffe)

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parasites

use a host organism for energy often without killing the host and often living inside host

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-Ex: mosquitos, tapeworms, sea lamprey

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parasitoids

lay eggs inside a host organism; eggs hatch and larvae eat host for energy

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-Ex: parasitic wasps, bot fly

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symbiosis

any close and long term interaction between two organisms of different species

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symbiosis example

mutualism, commensalism, parasitism

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mutualism symbiosis

organisms of different species living close together in a way that benefits both

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coral provide reef structure and co2 for algae; algae provide sugars for coral to use as energy

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lichen

composite organism of fungi living with algae' algae provide sugars and fungi provides nutrients

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competition

reduces population size becuasr there are fewer resources available and fewer organisms can survive

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resource partitioning

different species using the same resources in different ways to reduce competition

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temporal partitioning

using resources at different times such as wolves and coyotes hunting at different times

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spatial partitioning

using different areas of a shared habitat

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morphological partitioning

using different resources based on different evolved body features

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biome

an area that shares a combination of average yearly temperature and precipitation

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biome example

rain forest, taiga, temperate deciduous forest, grasslands, desert, tundra

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the community of organisms in a biome are uniquely adapted to _____

live in that biome

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latitude (distance from equator) determines _____ and ____ which is why biomes exist in predictable pattern on earth

temperature, precipitation

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nutrient availability

plants need soil nutrients to grow so availability determines which plants can survive in a biome

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frozen soil of tundra

low soil nutrients, low water availability, few plants survive

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shifting biomes

biomes shift in location on earth as climate changes

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shifting biome ex

warming climate will shift boreal forests further north as tundra permafrost soil melts and lower latitudes become too warm for aspen and spruce

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salinity

how much salt there is in a body of water determines which species can survive and usability for drinking (freshwater vs estuary vs ocean)

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depth

influences how much sunlight can penetrate and reach plants below the surface for photosynthesis

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flow

determines which plants and organisms can survive, how much O2 can dissolve into water

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temperature

warmers water holds less dissolved O2 so it can support fewer aquatic organisms

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rivers have high____ due to flow mixing ___ and ____, also carry nutrient-rich sediments

O2, water, air

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lakes

standing bodies of fresh H2O (key drinking source)

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littoral

shallow water with emergent plants

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limnetic

where light can reach (photosynthesis)

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  • no rooted plants, only phytoplankton

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profundal

too deep for sunlight (no photosynthesis)

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benthic

murky bottom where inverts (bugs) live, nutrient rich sediments

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wetland

an area with soil submerges/saturated in water for at least part of the year, but shallow enough for emergent plants

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plants living in _____ have to be ___ to living with roots submerges in standing water

wetlands, adapted

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benefits of wetlands

  • stores excess water during storms, lessening floods

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-recharges groundwater by absorbing rainfall into soil

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-roots of wetland plants filter pollutants from water draining through

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-highly plant growth due to lots of water & nutrients (dead organic matter) in sediments

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estuaries

areas where rivers empty into the ocean

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estuaries are a mix of fresh and salt water

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estuaries have ______ due to the nutrients in sediments deposited in estuaries by river

high productivity

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salt marsh

estuary hub, along coast in temperate climates

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mangroves

-estuary hub, along coast of tropical climates

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-mangrove trees with long stilt roots

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-stabilize shoreline and provide habitat for many species

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coral reef

warm shallow waters beyond the shoreline; most diverse marine biome on earth

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_____ relationship between coral and algae

mutualistic

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coral tales _____ out of ocean to create ____ exoskeleton (the reef) and also provide CO2 to the algae

CO2, calcium carbonate

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algae live in the reef and provide ___ to the coral through ____

sugar, photosynthesis

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both species in coral reef rely on the other

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intertidal zones

narrow band of coastline between high and low tides

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organisms living in intertidal zones must be adapted to survive crashing waves and direct sunlight/ heat during low tide

ex: barnacles, sea stars, crabs that can attach themselves to rocks

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shells and tough outer skin can prevent from _____ during low tides

drying out

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different organisms are adapted to live in different zones

ex: spiral wrack curls up and secretes mucus to retain water during low tide

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open ocean

low productivity/ area as only algae and phytoplankton can survive in most of ocean

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the open ocean is so large though, that algae and phytoplankton of ocean produce a lot of earths ___ and absorb a lot of atmospheric ____

O2, CO2

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photic zone

area where sunlight can reach (photosynthesis)

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aphotic zone (abyssal)

area too deep for sunlight

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movement of molecules that contain Carbon (CO2, glucose, CH4) between sources and sinks

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some steps of the carbon cycle are very _____ (fossil fuel combustion) and some are very _____ (sedimentation and burial)

quick, slow

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leads to imbalance in which reservoirs or sinks are storing carbon

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atmosphere is a key ____ reservoir; increasing levels of ___ in atmosphere leads to global warming

carbon, carbon

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carbon sink

a carbon reservoir that stores more carbon than it releases

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-ocean (algae and sediments) plants and soil

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carbon source

processes that add carbon to atmosphere

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-fossil fuel (oil, coal, not gas) combustion

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-animal agriculture (cow burps and farts = CH4)

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-deforestation, releases CO2 from trees

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plants, algae, and phytoplankton

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photosynthesis removes ____ from the atmosphere and converts it to ____

CO2, glucose

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glucose

biological form of carbon and stored (chemical) energy in form of sugar

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photosynthesis

CO2 sink

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cellular respiration is done by plants and animals to _______

release stored energy

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cellular respiration

uses O2 to break glucose down and ____ release energy

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cellular respiration releases ____ into the atmosphere

CO2

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cellular respiration: CO2 source

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both photosynthesis and cellular respiration are ______

very quick

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cycle carbon between ____ and ____ balanced amount (no net carbon increase in atmosphere)

biosphere, atmosphere

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direct exchange

CO2 moves directly between atmosphere and the ocean by dissolving into and out of ocean water at the surface

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a direct exchange happens very ___ and in ____ directions, balancing levels of CO2 between atmosphere and ocean

quickly, equal

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because of direct exchange, increasing atmospheres ___ also increases ocean ___ leading to ____

CO2, CO2, acidification

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algae and phytoplankton

take CO2 out of the ocean and atmosphere through photosynthesis