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Ch 3 Environmental
Terms in this set (43)
scientific study of interactions among organisms and between organisms and their environment
a group of individuals of the same species that live in the same area and interbreed, producing fertile offspring
(ecology) a group of interdependent organisms inhabiting the same region and interacting with each other
A community and its physical environment together
The application of ecological principles to the study of land-use patterns; the scientific study of the biodiversity of interacting ecosystems
part of Earth in which life exists including land, water, and air or atmosphere
group of similar organisms that can breed and produce fertile offspring
the layer of air that surrounds the earth
the watery layer of the earth's surface
the solid part of the earth consisting of the crust and outer mantle
the ability to do work
energy stored due to an object's position or arrangement
the energy an object has due to its motion
the study of energy transformations that occur in a collection of matter
a system in which no matter is allowed to enter or leave
matter can enter from or escape to the surroundings
The First law of Thermodynamics
..., Energy cannot be created or destroyed but it can be changed from one form to another
Second Law of thermodynamics
..., a law stating that mechanical work can be derived from a body only when that body interacts with another at a lower temperature
..., (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work
..., process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
Aerobic Cellular Respiration
..., the process by which cells use oxygen to obtain usable energy from an energy source
..., geysers on the seafloor, created where tectonic plates move apart, spewing hot and mineral-rich water into cold ocean depths
..., process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates
..., The flow of energy from an ecosystem to an organism and from one organism to another.
..., step in the movement of energy through an ecosystem; an organism's feeding status in an ecosystem.
..., (ecology) a community of organisms where there are several interrelated food chains
..., organisms that make their own food
..., an organism that obtains energy and nutrients by feeding on other organisms or their remains.
..., organisms that depend on other organisms for their food
..., an organism that eats only plants.
..., an organism that eats primary consumers
..., organisms that mainly prey upon animals.
..., an organism that eats both plants and animals.
..., organisms that consume organic litter debris and dung.
..., organisms that break down wastes and dead organisms and return raw materials to the environment
..., a series of steps in which organisms transferring energy by eating or being eaten.
..., show the relative amount of energy or matter contained within each trophic level in a given food chain or food web
Pyramid of Numbers
..., representation of the number of individual organisms in each trophic level of an ecosystem
Pyramid of Biomass
..., Shows the total amount of living material available at each trophic level/ The area at the bottom corresponds to the producer level. It represents the greatest amount of living material.
..., the total mass of living matter in a given unit area
Pyramid of Energy
an ecological pyramid that shows the energy flow through each trophic level in an ecosystem.
Gross Primary Productivity
the rate at which organic matter is assimilated by plants and other producers during a period of time over a certain area
Net Primary Productivity
the rate at which biomass accumulates in an ecosystem
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