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ch 23 7th

science

QuestionAnswer
Producer An organism that can make its own food
Grass land An area populated by grass that gets 25 to 75 cm of rain
Succession The series of predictable changes to occur in a community over time
Pioneer Species The first species to populate an area
Primary Succession The changes that oocur in an areawhere no ecosystem existed
Secondary Succession The changes that oocur after a disturbance in an ecosystem
Nertic zone The region of shallow ocean water over the continetal shelf
Tundra An extremely cold, dry biome
Desert An area in which te yearly amount of evaporation is greater than the amount of precipitation
Intertidal Zone The area between the highest high tide and th lowest low tide line
Coniferuos Tree TREES THAT PRODUCE THEIR SEEDS IN CONES AND HAVE NEEDLES-SHAPED LEAVES
Under Story A layer of shorter plants that grow in the shade of a forest
Estuary A habitat in which the fresh water of a river meets the salt water of the ocean
Decidious Tree Trees that shed their leaves and grow new ones each year
Canopy A laefy roof formed by tall trees
Perma Frost Soil that is frozen all year
Savanna A grassland close tothe equator
Biome A group of ecosystems with similar climate and organisms
Climate The typical weather pattern in an area over a long period of time
Disperal The move ment of organisms from one place to another
Exotic Species Species that are carried to a new location by people
Continental Drift The very slow movement of continents
Native Species Species whic have naturally evolved in an area
Biogeography The study of how organisms live
Nodule Bumps on the roots of certain plants that house nitrogen fixing-bacteria
Created by: Mike ang
Popular Earth Science sets

 

 



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