This type of forest, dominated by spruce and firs, can tolerate the temperatures and conditions of North Carolina's highest slopes.
What is a boreal forest?
100
Unlike heterotrophs, these organisms that can use the sun’s energy to produce food by photosynthesis.
What are autotrophs?
100
The direct relationship of what is eaten by what. This shows the flow of energy from one organism to the next as each organism eats and is then eaten by another.
What is the food chain?
100
Total miles of streams and rivers in the Chowan River Basin
What is 791?
200
The excess precipitation over evaporation that runs over the land into streams, lakes, wetlands, and reservoirs and is the main source of surface water.
What is run-off?
200
This will typically make temperatures about 15 degrees cooler.
What is the shade of a tree?
200
These organisms eat dead and decaying plant or animal matter including excrement.
What are detritivores?
200
The role or position an organism has in its environment. It includes all interactions with both living and non-living parts of the ecosystem.
What is niche?
200
These two rivers meet near the North Carolina and Virginia border to form the Chowan River.
What are the Blackwater and the Nottoway?
300
An underground formation that contains water; porous, water saturated layers of sand, gravel, or rock through which groundwater flows. Surrounded by an impervious layer below and above.
What is an aquifer?
300
The amount of this substance a tree takes in and uses is becoming increasingly important, because the amount of this substance in the air continues to increase as we burn more and more fossil fuels.
What is carbon dioxide?
300
A special group of decomposers capable of breaking down large organic molecules into molecules small enough to be absorbed by plant roots.
What are transformers?
300
A diagram that shows how energy is lost from one level of the food chain to the next.
What is the energy pyramid?
300
The length and direction of flow of the Chowan River.
What are 50 miles and southeast?
400
The characteristic of water that allows
a “skin” to form over its surface strong
enough to support small objects including
living organisms, such as water striders.
What is surface tension?
400
The demand for this has doubled between 1950 and 2000 and is expected to grow at a rate of about 4% per year.
What are paper products?
400
This makes up 78 percent of the earth's atmosphere.
What is nitrogen?
400
Plants, such as red clover and peas, which have nitrogen-fixing bacteria in growths called nodules on their roots.
They are able to take nitrogen from the atmosphere and add it to the soil where plants can use the nitrogen.
What are legumes?
400
The Chowan River empties into this body of water.
What is the Albemarle Sound?
500
Water is most dense at this temperature.
What is 4 degrees Celsius (39 degrees Farenheit).
500
This occurs in areas where there is no life present. Examples of such areas include cooled lava fields and bare rock. It generally happens in a set sequence with little variation from ecosystem to ecosystem and takes place over hundreds of years.
What is primary succession?
500
Parent material, climate, relief or topography, biota and time or exposure.
What are the soil forming factors?
500
Adaptations in some species to resemble another species. This may provide protection from predators or other advantages.
What is mimicry?
500
The size of the Chowan Swamp and the four major species of trees.
What are 11,000 acres and swamp tupelo, red maple, water tupelo and bald cypress?