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55 Cards in this Set
- Front
- Back
Dynamic Equilibrium |
It is always changing and adapting, trying to maintain equilibrium without upsetting the whole system |
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Community |
A collection of populations |
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A community and its physical and chemical environment is called |
ecosystem |
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Population |
A group of organisms of the same species occupying the same space |
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Where is the ozone layer? |
In the stratosphere |
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What layer of the atmosphere does life reside in? |
Trophosphere |
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Albedo |
The ability to reflect solar radiation |
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What is the Gaia Hypothesis? |
All living things are connected and everything must remain in balance or the whole system will be upset (butterfly effect) |
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What makes up the biosphere? |
Lithosphere, Hydrosphere, and atmosphere |
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What is the functional part of the biosphere? |
The ecosystem |
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3 layers of the atmosphere |
Trophosophere Stratosphere Mesosphere |
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Trophosphere |
Where life occurs. |
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Stratosphere |
Contains ozone layer |
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Mesosphere |
Contains atmospheric gases and water vapour |
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What is ozone and where is it found? |
A gas found in the stratosphere that protects us from UV rays |
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How does snows high albedo contribute to cold weather? |
It wont absorb any of the radiation heat so it remains cold |
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What are the 5 kingdoms? |
1. Plant. 2. Animal 3. Fungi 4. Monera 5. Protista |
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2nd law of thermodynamics |
Energy will be lost during a transformation
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What are the three pyramids of energy? |
1. Pyramid of Numbers 2. Pyramid of Biomass 3. Pyramid of Energy |
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Biomagnification |
When pesticides are eaten by 1 rat, then a snake eats 3 rats, then a mongoose eats 10 snakes so there is far more poison in the mongoose than there was in the rat |
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Pioneer Organism |
Are the first organism to re inhabit a hard to live in region
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Three Structural Zones of Earth |
Lithosphere Hydrosphere Atmosphere |
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How are materials and potential energies moved through the ecosystem? |
Through the trophic levels |
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Pyramid of Numbers |
Based on the numbers of organisms at each trophic level |
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Pyramid of Biomass |
Based on the dry mass of tissue KG |
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Pyramid of Energy |
Drawn on the basis of the energy produced at each trophic level KJ |
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Whats it called where both organisms benefit from a relationship? |
Mutualism |
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A relationship where one organism benefits and the other is neither harmed nor benefited |
Commensalism |
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A relationship where one organism feeds on the dead tissue of another |
Detrivitory |
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Primary succession |
The first form of life where there is none |
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What is the edge effect |
The most productive regions have a large diversity of plants which causes a large diversity of animals |
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What is substrate? |
The soil conditions |
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Thin substrate= |
Bare substrate |
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Climax forest |
The final form of a forest |
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Note: The thicker the substrate the more productive |
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What is secondary succession? |
If there is a minor disaster and the area has to regrow |
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What makes up climate? |
Precipitation and temperature |
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What are the lake successions? |
1. Oligotroph - deep, cold, unproductive 2. Mesotrophic - bottom begins to fill, warmer, shallower, more productive 3. Eutrophic - shallow, warm productive |
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Three aquatic communities? |
1. Fresh 2. Salt 3. Brackish |
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Eurotrophication |
The filling of a lake by organic matter and vegetation |
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What are the four zones of water? |
Litoral- around the edge where it is shallow enough for growth Limnetic- open area of a lake that goes down to where there is no light (vertical) Profundal- Light cannot penetrate here (horizontal) Benthos - the bottom |
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Winter stagnation |
Lake is covered with ice so oxygen exchanged does not occur. Light cannot penetrate and photosynthesis ceases |
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COLD WATER FLOATS |
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Overturn |
When the wind buffs the ice free lake and increases the amount of dissolved oxygen |
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Epilimnion |
Upper layer; warm |
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Thermocline |
Middle layer |
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Hypolimnion |
Lower layer, can be high o2 or low o2 |
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Five conditions that determine organisms survival in winter ecosystem |
1. Snow 2. Cold 3. Radiation of heat 4. Wind 5. Energy (food) |
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Types of adaptations |
1. Anatomical 2. Behavioral 3. Physiological |
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Chinophobe |
Hates snow Hibernates, produces glycerol (Chino=chinook=associated with winter) |
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Chioneuphore |
Can survive in snowy regions Switch from grazing to browsing |
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Chionophiles |
Really like snow often cant survive in warmer regions |
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What adaptations can animals make to adapt to colder climates? |
Insulating fur coat Small extremities Increased activity Adipose tissue Utilize insulation provided by environment (snow cover) Larger subnivean |
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Subnivean |
Smallest mammals live under the snow |
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Pukak |
Open space at base of snow |