CHAPTER 20 VOCABULARY
describes non living factors in the environment
a large region characterized by a specific type of climate and certain types of plants and animal communities.
tropical grassland biome with scattered clumps of trees.
hot, dry biome inhabited by organisms adapted to survive high daytime temperatures and
long periods without rain.
far-northern biome characterized by long, cold winters, permafrost, and few trees.
permanently frozen ground below the soil surface in the artic tundra.
a eco-system based on salty water.
microscopic photosynthesis organism that floats near the surface of the ocean.
that, along with the phytoplankton they consume, form he base of the ocean floor.
Estuary-an area where fish water from streams
and rivers spills into the ocean.
Tributary-a small stream or river that flows
into a larger one.
Littoral zone-the zone of a lake or pond closest
to the edge of the land.
Open-water zone-the zone of a lake or pond
that extends from the littoral zone out across the top of the water and that is only as deep as light can reach through water.