What is ecology?
Energy, Producers and Consumers
Energy Flow in Ecosystems
Cycles of Matter
Vocabulary
100
The scientific study of interaction among organisms and between organisism and their physical environment?
What is ecology?
100
the first producers of energy-rich compounds that are later used by other organisms
What are primary producers?
100
Photosynthetic algae found near the surface of the ocean
What is phytophlankton?
100
Within and between ecosystems
How does matter move through the biosphere?
100
The process by which bacteria convert nitrates into nitrogen gas
What is denitrification?
200
Species, Population, Community, Ecosystem, Biome, Biosphere
What are the levels of organization within ecology?
200
How to get energy from the sun
What is photosynthesis?
200
In a one-way stream, from primary produces to various consumers
How does engery flow through ecosystems?
200
(Use Figure 3-15 on page 81) Surface run-off to/through rivers and lakes AND seeps into the ground and becomes groundwater
What are the two primary ways in which water that falls toEarth as precipitation passes through the water cycle?
200
Each step in a food chain or food web
What is trophic level?
300
biological influences on organisms
What are biotic factors?
300
Organism that obtains food by consuming other living things
What is a heterotroph?
300
A series of steps in which organisms transfer energy by eating and being eaten.
What is a food chain?
300
Biological, Geological, Chemcial and Physical, Human Activity
What are ways in which the processes involved in biogeochemical cycles can be classified?
300
Process by which chemical energy is used to produce carbohydrates
What is chemosynthesis?
400
Physical components of an ecosystem
What are abiotic factors?
400
Organisms that can capture energy from sunlight or chemicals and convert it into forms that living cells can use
What is an autotroph?
400
Drop in population of a member of a food web (many answers possible)
How can a food web be disturbed?
400
Water continuously moves between the oceans, the atmosphere, and and land--sometimes outside living organisms and sometimes inside them.
How does water cycle through the biosphere?
400
a group of ecosystems that share simlar climates and typical organisms
What is a biome?
500
Observation, Experimentation, Modeling
What are methods used in ecological studies?
500
Organisms that rely on other organisms for energy and nutrients
What is a consumer?
500
Biomass, Numbers, Energy
What are the three types of ecological pyramids?
500
The chemical substances that an organism needs to sustain life
What are Nutrients?
500
Nutrient whose supply limits productivity
What is a limiting nutrient?
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