What is a warm, wet land that supports many varieties of both plants and animals?
100
True
True or False:
Ecosystems are always changing.
100
The photic zone is the upper layer of oceans, which has sunlight and the aphotic zone is below the photic zone and its very dark
What is the difference between the photic zone and the aphotic zone?
100
the gradual change in living communities that follows a disturbance
What is ecological succession?
100
carbon dioxide, methane, water vapor
What are a few atmospheric gases that maintain Earth's temperature range?
200
a biome
What is a large group of ecosystems that share the same climax community?
200
succession
What is the process of the replacement of one community by another as environmental conditions change called?
200
the tides
The salinity of the water in an estuary changes with what?
200
Temperature, precipitation and light
Which three abiotic factors generally determine the type of climax community that will develop in a particular place?
200
polar, temperate and tropical
What are Earth's three main climate zones?
300
Grasslands have small plants and grasses but few trees and deserts dont have many plants, the few that it does have are drought-resistant
What is the difference between grasslands and the desert?
300
False it would have an indirect effect on another population
True or False:
Factors that limit one population in a community may also have a direct effect on another population.
300
False because of the lack of oxygen
True or False:
Many organisms live at the bottom of a deep lake.
300
The physical and biological conditions in which an organism lives and the way in which an organism uses these conditions
What is a niche?
300
The climate within a smalla rea that differs significantly from the climate surrounding it
What is microclimate?
400
Desert and Tundra
What are two terrestrial biomes that have the least amount of precipitation?
400
Pioneer species are the first organisms to colonize the new area, and this colonization is called primary succession
Is primary succession and pioneer species related? If so, how?
400
Depth, Flow, Temperature and the overlying water
What are aquatic systems determined by?
400
The ecological rule that states that no two species can occupy the same exact niche in the same habitat at the same time
What is the competitive exclusion principle?
400
The moderate climate zone between the polar zones and the trophics
What is the temperate zone?
500
Its determined by its climate: temperature,sunlight,prevailing winds, and precipitation
What is the climax community of any ecosystem on Earth determined by?
500
False; less organisms would be able to survive.
True or False:
As organisms move away from optimal environmental conditions, more organisms will be able to survive.
500
A mangrove swamp is a coastal wetland dominated by mangroves, but a saltmarsh is a temperate-zone estuary that is dominated by salt-tolerant grasses above the low-tide line.
What is the difference between a saltmarsh and a mangrove swamp?
500
the wetland
What is the ecosystem in which water either covers the soil or is present at or near the surface of the soil for at least part of the year?
500
The cold climate where the son's rays strike Earth at a very low angle