biomes and aquatic ecosystems - sciencewoodardscience.weebly.com › uploads › 2 › 8 › 3 › 5...
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![Page 1: Biomes and Aquatic Ecosystems - Sciencewoodardscience.weebly.com › uploads › 2 › 8 › 3 › 5 › 28354179 › ... · 2018-09-10 · Biomes and Aquatic Ecosystems •A biome](https://reader034.vdocuments.site/reader034/viewer/2022042409/5f25505bd382ee77867cc38a/html5/thumbnails/1.jpg)
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Biomes and Aquatic Ecosystems
• A biome is a group land ecosystems with similar climates and organisms.
• It is mostly the climate (temperature and precipitation) in the area that determines its biome.
• Aquatic Ecosystems are water based habitats.
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Rain Forest Biomes
• Receives up to 300 centimeters of rain per year.
• Can be temperate or tropical.
• Most organisms on earth.
• Lots of food, water, and shelter.
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Tropical Rainforests
• Trees in the rainforest grow in distinct
layers.
• Tall trees form a leafy roof called the
canopy.
• Below the canopy a second layer of trees
and vines form an understory.
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Desert Biome
• Receives less than 25 centimeters of rain per year.
• No trees and very few organisms due to scarcity of water.
• Cactus plants have a waxy surface to limit water loss.
• Most animals are nocturnal to avoid the heat.
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Grassland Biome
• Receive 25 to 75 centimeters of rain per year.
• Can be prairies or savannas.
• Few trees due to limited water but many
organisms.
• Grass everywhere.
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Temperate Deciduous Biome
• Receive 75-150 cm of rain per year.
• Has four distinct seasons. Trees lose their leaves yearly.
• Many different organisms.
• You live here.
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Taiga/Boreal Forest Biome
• Receives 60 centimeters of precipitation per
year (mainly snow).
• Covered in forests of coniferous (evergreen)
trees.
• Covered in snow 10 months per year.
• Trees have waxy leaves to prevent water loss.
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Tundra Biome
• Receives less than 25 centimeters of
precipitation per year (mainly snow).
• Extremely cold.
• Most of the ground is locked in a frozen state
called permafrost. No trees can grow here.
• Few organisms due to extreme temperatures.
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Mountain Biome
• Progresses through different climates as you
climb.
• More life forms closer to base of mountain.
• Fewer organisms and much colder as elevation
increases.
• Mountains receive rain and snow regularly.
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Freshwater Ecosystem
• Include streams, rivers, ponds, and lakes.
• The faster water moves the more oxygen it
contains.
• Slower water holds more organisms.
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Marine Ecosystems
• Estuary where rivers meet saltwater.
• Intertidal zones where the high tide and low tide
marks are.
• Neritic zone that extends from the shore to the
edge of the continental shelf.
• Open ocean lying past the continental shelf.
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Marine Ecosystems
• Shallow salt water supports the most
organisms because sunlight reaches the
bottom and the water is warmer.
• Coral reefs hold very diverse populations
of marine life due to depth and shelter that
coral structures provide.
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