Stack #4874
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| which statement best decribes succession? | it occurs through predictable stages over time
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| secondary succession is typically completed in less time than primary succession because_____is already present | soil
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| pioneer species are adapted for growing well in ___ habitats | newly exposed
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| during primary succession,___directly follow lichens | mosses
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| secondary succession occurs when | a new community grows on existing rock
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| ____often replace lichens during primary succession | mosses
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| As you are rock-climbing a mountain, you notice brightly colored lichen all over the rocks. The lichens are an example of..? | a pioneer species
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| a desert ecosystem would include | plants & animals, air, sand
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| a system in equilibrium, usch as a stable pine forest, is one in which the forces are-- | balanced
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| components of a desert ecosystem include-- | a hot,dry climate, shallow-rooted plants, animals active mostly at night
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| Organisms that live in intertidal areas must be able to live both underwater and out of water..true or false? | true
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| Prairies, steppes, and pampas are types of ___biomes | grassland
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| What is a type of wetland characterized by trees draped with spanish moss and vines? | swamp
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| an organism's environment is | anything that affects the organism
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| a population is made of a | group of individuals of the same species
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| the area of Earth where life is present is called | the biosphere
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| What is most likely a stable community | a hardwood forest
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| ecological succession helps and ecosystem do what? | maintain its equilibrium
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| fish, an alligator, and plants are all= | biotic parts of the environment
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| the first level of environment organization is a(n) | organism
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| what is a biotic part of a desert? | cactuses
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| What is an abiotic part of a forest? | water b/c it's nonliving
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| What has BOTH abiotic and biotic parts? | an ecosystem
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| what contains only biotic parts? | a community
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| There is little rainfall in the arctic tundra, however plants survive because-- | the permafrost prevents rain from draining through the soil
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| A(n)____ecosystem is one that is based on salty water | marine
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| Salt and fresh water mix in a(n) what? | an estuary
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| Each stream of water that joins a larger steam is ..what? | a tributary
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| the area where fresh water meets land is called the.. | littoral zone
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| in a freshwater ecosystem, the ____is the part of the water where no light reaches. | deep-water zone
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| what is a true statement about the savannas? | they can be home to large plant eaters
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| which is the most biologically diverse biome? | tropical rain forest
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| deciduous trees are able to conserve water in winter by.. | losing their leaves
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| the topsoil in a tropical rain forest is usually.. | thin and poor
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| to reduce competition for water, desert plants ofter grow... | far apart
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| Organisms in the ____feed on dead organic material. | deep-water zone
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| If you visited a savanna, you would most likely see what? | large herds of grazing animals such as zebras,gazelles, and wildebeasts
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| animals that live in the oceanic zone usually have what? | a sleek, tapered shape.
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| plants that have shallow, widespead roots that absorb water quicklyduring a storm would most likely live in a(n)... | Arctic tundra
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| which biome has the highest average yearly rainfall? | tropical rain forest
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| which biome has the lowest average yearly rainfall? | desert
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| _____tundra is found on mountaintops | Alpine
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| A_______is a tropical grassland | savanna
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