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30 Cards in this Set
- Front
- Back
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A relationship which occurs when one member of the relationship is neither helped nor harmed and the other member derives some benefit |
Commensalism |
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A relationship in which both members benefit |
Mutualism |
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Insects that are poisonous are generally brightly colored |
Aposematic Coloration |
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Some insects that lack any specific chemical defenses blend with their environment to avoid predators |
Cryptic Coloration |
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Secondary succession takes place |
In an abandoned agricultural fild |
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Two or more unrelated but protected species resemble one another, thus achieving a kind of group defense |
Mullerian Mimicry |
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The way in which an organism utilizes it's environment |
Niche |
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A species that plays a critical role in maintaining the structure of an ecological community and helps to determine the types and numbers of various other species in the community |
Keystone Species |
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Organisms such as fleas and ticks, which attach to the outside of an organism to obtain nutrients harmfully |
Ectoparasites |
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Must occur in order for two species with identical niches to coexist in a community |
Resource Partitioning |
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A cow's herbivorous diet indicates that it is a(n) |
Primary consumer |
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Aquatic primary productivity is most limited by |
light and nutrient availability |
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The amount of chemical energy in consumers' food that is converted to their own new biomass during a given time period |
Secondary Production |
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Even though nitrogen constitutes 78% of Earth's atmosphere, the amount available for living things nearly all comes from |
A few groups of nitrogen-fixing bacteria |
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Which one of the links in the food chain shown does the blue jay represent?
grass - cricket - garden spider - blue jay - red-tailed hawk |
Tertiary consumer |
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The relationship between the energy used for growth versus the energy used for daily needs, and can vary amongst organisms |
Production Efficiency |
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Causes excessively high levels of toxic chemicals in top predators in the food chain |
Biological Magnification |
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Causes an increase in the intensity of UV radiation reaching the Earth |
Depletion of the atmospheric ozone |
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Carbon dioxide, methane, and water vapor re-reflecting infrared radiation back toward Earth |
Greenhouse effect |
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Which of the trophic levels would have the largest biomass? |
Primary producers |
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Periodic disturbances of the Pacific currents that seem to cause global weather changes are given the name |
El Nino |
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The area of the ocean that is the open ocean area, away from the coasts |
Pelagic Zone |
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When thermal stratification occurs, the division between the warm and cold water is called |
Thermocline |
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Most of the best soils for agriculture occur in |
Temperate grassland |
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Water and wind currents move in a clockwise direction above the equator, and counterclockwise below the equator due to: |
Coriolis Effect |
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Which of the following are important biotic factors that can affect the structure and organization of biological communities? |
predation, competition, pollination |
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In temperate lakes, the surface water is replenished with nutrients and oxygen from the bottom during turnovers that occur in the |
Autumn and Spring |
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What causes the Earth's seasons? |
The tilt of the Earth's axis |
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Which marine zone would have the lowest rate of primary productivity (photosynthesis)? |
Abyssal |
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Which type of biome is characterized by dry grasslands bordering the tropics? |
Savanna |
