EVS First Exam
Terms
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- what causes population to change?
- environmental change cause populations to change: Size, Age Distribution, Density, Genetic composition
- community
- populations of different species in the same place at the same time, Plants, animals, micros
- ecosystem
- communities of different species and non-living environment
- biosphere
- all ecosystems
- environment
- All external conditions and factor, both living and non-living that affect an organism during its lifetime. Doesn't have internal.
- environmental studies
- The study of how both we and other species interact, with each other and with non-living environment. It has both physical (science) and social aspects that integrate knowledge from many fields.
- hunter-gatherer society
- groups of 50 people or less, moved regularly, "no effect" on the environment
- advanced hunter-gatherers
- groups of 50 people or less, caused some local extinctions, carried seed, nomads, slight effect on the environment
- General Revisions Act
- 1891. President can establish forest reservations on public land but no one was responsible for taking care of it
- Forest Reserve Act
- 1891. Made the government responsible for protecting public land, They put the army in charge of protecting the land, John Muir: Proposed "Wilderness Act" which Set aside land for public use which meant places for hiking, camping, etc
- Antiquities Act
- 1906. The President can protect areas of scientific or historical interest as national monuments
- Civilian Conservation Corps
- Developed parks and rec areas (Blueridge Parkway, Appalachian trail, etc), Flood control, Soil conservation, Protect wildlife
- Tennessee Valley Authority
- Dam construction, Hydro power, Re-forestation
- Soil Conservation Service
- Protect soil due to the dustbowl
- Clean Air Act
- 1977. Restrictions on air pollutants (ex. coal burning power plants, vehicle), Air pollution problems: specifically in DC
- Clean Water Act
- 1977. Established requirements for clean water
- Compounds
- a combination of elements (organic or inorganic). Held together by atomic bonds.
- Kinetic Energy
- energy of motion
- Potential energy
- stored energy
- heat
- kinetic energy of object from radioactive elements
- Convection
- movement of matter toward heat source
- Conduction
- energy transferred through an object
- radiation
- transfer of energy by wave motion
- pollution
- harmful substance that can't be "thrown away"
- radioactive matter
- elements that breakdown in to other forms of matter (elements) at a constant rate
- half life
- time it takes for ½ of radioactive matter to breakdown
- 1st Law of Thermodynamics: Conservation of Energy
- In all physical and chemical changes, energy is neither created nor destroyed but may be converted from one form to another
- 2nd Law of Thermodynamics
- In any type of energy change, some energy is degraded to lower quality
- ecology
- the study of how organisms interact with each other and with the non-living environment
- Prokaryotic organisms
- cell with no nucleus (bacteria)
- Eukaryotic organisms
- cells with a nucleus (everything but bacteria)
- Monera Kingdom
- prokaryote, single cell
- Protoctista Kingdom
- Eukaryote, single cell, plant or animal
- Fungi Kingdom
- Eukaryote, multi cell, produce food without photosynthesis
- Plantae Kingdom
- Eukaryote, multi cell, photosynthesis
- Animalea Kingdom
- Eukaryote, multi cell, gathers food