1. Vocab
September 9, 2015

2. Communities
Populations
Niche
several interacting populations that inhabir a common environment and are interdependent
A group of organisms of one species living in the same place at the same time that interbreed
The role a species plays in a community; its total way of life

3. Trophic Levels
Photosynthesis
Cellular Respiration
Represent a feeding step in the transfer of energy and matter in an ecosystem
Plants taking in CO2, water, and sunlight and producing oxygen and sugar.
Humans takin g in oxygen and sugar and releasing CO2, water, and energy.

4. Carbon Cycle
Greenhouse Effect
Global Warming
Movement of carbon between the atmosphere, oceans, biosphere, and geosphere
Process by which C)2 & other gases in the atmosphere absorb infrared radiation from the sun forming a “heat blanket” around the earth.
An average increase in the Earth’s temperature, which in turn causes changes in climate.

5. Two species living togetner.
Fossil Fuels
Nitrogen Fixation
Symbiosis
A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
Two nitrogen molecules break apart so they can combine with oxygen or hydrogen.
Two species living togetner.

6. Mutualism
Parasitism
Commensalism
beneficial to both species.
one species benefits (parasite) and the other is harmed (host).
One species benefits and the other is neither harmed nor helped.

7. Bioaccumulation
Decomposer
Energy Pyramid
accumulation of substances, such as pesticides, or other organic chemcials in an organism.
An organism whose ecological function involves the recycling of nutrients by feeding on dead or decaying matter.
A graphic model that shows how energy flows through a food chain. Energy decreases as we move up the pyramid.

8. Infiltration
Biotic Potential
Dynamic Equilibrium
The diffusion or accumulation in a tissue or cells of a substance that is not normal to it.
The potential growth a population of a living organism can expect if it is living under ideal conditions.
A system in a steady state since forward reaction and backward reaction occur at the same rate.

9. Urbanization
Thermal Expansion
Fragmentation
The process by which citites grow in new areas.
Characteristic property that causes solids and liquids to increase in volume when heated.
The process or state of breaking into small parts

10. Impervious surface
Invasive Species
Carrying Capacity
Not able to penetrate.
Non-native species disrupting and replacing native species
The number of individuals of a particular species capable of surviving in a particular environment over long periods of time.