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25 Cards in this Set
- Front
- Back
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Habitat- Why organisms live in different habitats
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A place where an organism lives and get all its needs to survive. Different organisms have different requirements for survival
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What is population density and how the number of individuals affects it
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The number of individuals in a specific area. Depending on the number of individuals in an area, the population density can increase or decrease. Ex. large number of individuals in an area = high population density/ small number of individuals = lower population density
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What is the birth rate versus death rate statement
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If birth rate is greater then death rate, population size increases/If death rate is greater, population size decreases
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What is the definition of carrying capacity
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The largest population that an area can support
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What is the definition of decomposers
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An organism that breaks down the large molecules from wastes and the remains of dead organisms into small molecules and returns important materials to the soil and water.
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what are examples of biotic factors
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"Living things", animals, plants, bacteria
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Definition of abiotic factors
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"Non-living things", soil/ rocks, water,lava, shelters, sunlight oxygen/carbon dioxide, temperature
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Definition of community
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All the different population that live together in an area
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Defintion of organism
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A living thing
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Definition of ecology
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The study of how living things interact with each other and with their environment
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What is the definition of population density
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The number of individuals in a specific area
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How do you compute population density given a population and an area
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Population density = number of individuals divided by unit area
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What is the definition of sampling
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Sampling - counting number in small area X larger area
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What is the definition of emigration
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Leaving a population / moving out of a population
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What is the definition of a limiting factor...... give examples
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An environmental factor that prevents a population from increasing. Ex. food, space, and weather conditions
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Energy enters most ecosystems from ________
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Sunlight
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What are examples of producers
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Producers:flowers, grass, seaweed, and cacti
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Compare and contrast herbivores and carnivores
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Herbivores only eat plants.
Carnivores eat other animals. |
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What is the definition of a food chain
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A diagram to show the flow of energy from organism to organism
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What returns nitrogen compounds back to soil
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Decomposers
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What is the waste product of respiration
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Carbon dioxide gas
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What does biomass release
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Different types of matter and heat
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Give examples of the use of the decay of biomass
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Makes good fertilizer and also releases energy
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what are the levels of ecological organization in an ecosystem....... give examples of each
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Producers (plants), consumer (cattle), decomposer (worms)
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Tell how carbon dioxide gas is cycled through an ecosystem... know how to fully explain
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Producers take in carbon dioxide gas during photosynthesis
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