What is the difference between Food Webs and Food Chains?
Name and describe the different trophic levels.
What is the difference between an autotroph and a heterotroph?
Describe the difference between an omnivore, carnivore, and herbivore.
What is the role of decomposers in a food web?
Where do producers obtain energy?
What percent of energy is moved between trophic levels?
If the producer has 1000 kilocalories, how much energy would a quarternary consumer gain in this food chain?
Why isn't more energy transferred between trophic levels?
Why do top carnivores have to eat more individual organisms than primary consumers?
What are the defining characteristics of a biome?
List the levels of organization.
What are defining characteristics of a temperate forest biome?
Is a river a standing water biome or flowing water ecosystem?
Describe habitat and give an example.
What is does biodiversity mean?
How does greater biodiversity benefit humans?
List 5 threats to biodiversity
Describe biolgoical magnification.
How does habitat fragmentation contribute to a loss in biological diversity?
What does succession mean?
Where does primary succession occur?
Where does secondary succession occur?
What kinds of disturbance can contribute to secondary succession?
Food webs show the complex interaction between Food Chains. Food Chains shows a single line of producers and consumers.
The base of the food web are the producers. Producers are organisms that make their own food. The levels above the producer are consumers. The consumers eat other organisms to obtain energy.
An autotroph makes its own food. Heterotrophs obtain their food from other sources.
Omnivores eat plants and animals, carnivores eat animals only, herbivores eat plants only.
To break down materials into smaller nutrients that can be absorbed by other organisms.
The sun.
10 percent
0.1 kilocalories
Much of the energy is lost to heat.
Because they obtain a smaller amount of energy from each individual.
A biome is defined by its vegetation and climate patterns. Soil is also important characteristic.
organism, population, community, ecosystem, biome, biosphere.
deciduous forest, cold winters
Flowing water biome.
Habitat is a place where an organism lives. IT can be described by the vegetation, type, or physical location. An example of a box turtles habitat would be pond and its associated shoreline.
Biodiversity is the total variety of life in an area
Provides a source of fresh air (oxygen), clean water, food, recreation, medicine
Pollution, Habitat Loss and Fragmentation, Invasive Species, Global Climate Change, Overexploitation of resources.
Biological magnification is when an inorganic chemical is concentrated in a top carnivore as it feeds on lower levels of the food web that have this chemical in their tissues.
Habitat fragmenation reduces the amount of habitat and resources available to a species. In addition, species lose genetic diversity as small populations are isolated in smaller habitats.
An orderly change in vegetation over time.
Primary succession occurs on surfaces that have not had living material previously (Rock). If soil is present, it is not likely a site of primary succession.
Secondary succession occurs where organisms have previously lived. Soil must be present for secondary succession to occur.
forest fires,storms, abandoned farmland
