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SCIENCE
Biome Test
25
Science
7th Grade
05/17/2013

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Term
biome
Definition
a place characterized by the organisms that live there and the abiotic factors of rainfall and temperature
Term
How many ecosystems can a biome contain?
Definition
one or more
Term
temperate grassland
Definition
  • have small, seed eating mammals
  • large herbivores
  • no trees
Term
savanna
Definition
  • large herbivores live and graze on grass here
  • scattered clumps of trees
Term
desert
Definition
  • plants grow far apart to reduce competition for water
  • receives the lowest average yearly rainfall
Term
tundra
Definition
  • characterized by permafrost
  • no trees
Term
permafrost
Definition
soil that stays frozen all the time which prevents rain from draining
Term
temperate deciduous forest
Definition
  • soil is fairly rich and plants cover the forest floor
  • most trees are deciduous ; this helps the trees conserve water so they can survive winter
Term
When deciduous trees lose their leaves, what does that help them do?
Definition
conserve water so they can survive the winter
Term
coniferous/Taiga forest
Definition
  • contains conifer trees that produce their seeds in cones and do not lose their leaves in fall
  • trees conserve water in the winter with the help of needlelike leaves and a waxy coating on their leaves
Term
coniferous tree
Definition
  • produce their seeds in cones
  • do not lose their leaves

 

Term
tropical rain forest
Definition
  • most biologically diverse
  • soil is wet and has poor nutrients
  • receives the highest yearly average rainfall
Term
freshwater
Definition
characterized by a major abiotic feature ----the speed at which water moves
Term
What determines what type of organisms live in a stream or river?
Definition
the speed of the current
Term
tributary
Definition
each small stream that flows into a larger stream or river
Term
estuary
Definition
an area where fresh water from streams and rivers spills into the ocean (so the fresh and salt water mix)
Term
wetland
Definition
  • an area of land where the water level is near or above the surface of the ground for most of the year
  • area is plentiful in nutrients
  • varied plants
  • large amount of producers
Term
marine
Definition
based in salty water and conatin the largest organisms in the world
Term
intertidal zone
Definition
  • area where ocean meets the land - beach and shore
  • snails, crabs, shore birds and sea grass live here

 

Term
neritic zone
Definition
  • area where water becomes gradually deeper on the edge of the continental shelf
  • this area has the most diversity of organisms
Term
These live in the neritic zone
Definition
  • seaweeds
  • coral reefs
  • sea turtles
  • dolphins
Term
oceanic zone
Definition
extends across the ocean waters, and down about 200m
Term
These live in the oceanic zone
Definition
  • whales
  • squid
  • animals adapted to darkness and high pressure
Term
benthic zone
Definition
the sea floor, most areas do not receive sunlight
Term
These live in the benthic zone
Definition
  • worms
  • sea urchins
  • bacteria
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