collection of organisms and nonliving things, such as climate, soil, water, and rocks in the area
regional or global community or organisms characterized by the climate conditions and plant communities that thrive there
most environmental changes happen over time
Why are long-term studies a key part of a scientist's toolkit?
The movements of elk, bison, bear and wolf population, The location of different vegetation, The amount of snow,
The activities of geysers and other geothermal landforms
Name data from the Virtual Yellowstone ecosystem.
factors like moisture and temperature
What does the amount of biodiversity found in an area depends on?
carbon Dioxide, hydrogen sulfide, and oxygen
In chemosynthesis. chemical energy is used to change ______, ________, _______, _______ into an energy-rich sugar molecule.
1. Tertiary Consumer
2. Secondary Consumer
3. Primary Consumer
The levels of food chain are........
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
process where scientists watch animals either with the naked eye or with tools such as binoculars or scopes used for species that are easy to follow
process where scientists search for other signs of an animal's presence such as feces or recent kill sued for species that are difficult to track
method used by scientists to monitor populations where they fit an animal with a radio collar that emits a signal and then use the signal to track the animal's movement used to track a species with a broad range
method where quadrats are randomly placed on the study site where scientists identify and count the number of plants within each randomly selected plot
living things, such as plants, animals, fungi, and bacteria where each organism plays a key role in the ecosystem
nonliving factor in an ecosystem, such as moisture, temperature, wind, sunlight, soil, and minerals where the balance of the factors determines which living things can survive in a specific environment
organism that has an unusually large effect on its ecosystem that holds a dynamic ecosystem together
also called autotroph that is an organism that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals
also called heterotrophs that is an organism that obtains its energy and nutrients by eating other organisms
process by which an organism forms carbohydrates using chemicals, rather than light, as an energy source
model that links organism by their feeding relationships that follows the connection between one producer and a single chain of consumers within an ecosystem
consumer that primarily eats one specific organism or feeds on a very small number of organisms
movement of a chemical through the biological and geological, or living and nonliving, parts of an ecosystem
Cyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment
the transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere
diagram that compares energy used by producers, primary consumers, and other tropic levels where it is shown that available energy distributed amon tropic levels in a ecosystem
diagram that compares the biomass of different tropic levels within an ecosystem that provides a picture of the mass of producers needed to support primary consumers, etc