The scientific study of interactions among organismas and their environment, or surroundings.

Levels of Organization

Organism>population>community>ecosystem>biome>biosphere

Groups of individuals that belong to the same species and live in the same area.

Groups of different populations that live together in a patricular area.

Collection of all the organisms that live in a patricular place together with their non-living physical environment.

Group of ecosystems that have the same climate and dominant communities.

The part of the Earth that contains all ecosystems.

A groups of organismas so similar to one another that they can breed and produce fertile offspring.

Use energy form the environment to fuel the assembly of simple inorganic compounds.

An organism that makes thier own food, also known as an autotroph.

Changing light energy into stored chemical energy.

When organisms use chemical energy to produce carbohydrates, performed by several types of bacteria.

Organisms that rely on other organisms for their energy and food supply, also known as consumers.

Eat plant and animal remains and other dead matter, collectively called detrius.

A series of steps in which organisms transfer energy by eating and being eaten.

When the feeding relationships among the various organisms in an ecosystem form a network of complex interactions.

Process that releases energy by breaking down glucose and other food molecules in the prescence of oxygen.

Each step in a food chain of a food web.

Only about 10% of the energy avaiable within one trophic level is transferred to organisms at the next trophic level.

The Passing of the same molecules around again and again within the biosphere.

When an ecosystem is limited by a single nutrient that is scarce or cycles very slowly.

When an aquatic system recieves a large input of a limiting nutrient, the result is often of algae and other producers.

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Ecology Ch. 3 FCs

biology flash cards

Question	Answer

Ecology	The scientific study of interactions among organismas and their environment, or surroundings.
Levels of Organization	Organism>population>community>ecosystem>biome>biosphere
Organism	An individual living thing.
Population	Groups of individuals that belong to the same species and live in the same area.
Community	Groups of different populations that live together in a patricular area.
Ecosystem	Collection of all the organisms that live in a patricular place together with their non-living physical environment.
Biome	Group of ecosystems that have the same climate and dominant communities.
Biosphere	The part of the Earth that contains all ecosystems.
Species	A groups of organismas so similar to one another that they can breed and produce fertile offspring.
Autotroph	Use energy form the environment to fuel the assembly of simple inorganic compounds.
Producer	An organism that makes thier own food, also known as an autotroph.
Photosynthesis	Changing light energy into stored chemical energy.
Chemosynthesis	When organisms use chemical energy to produce carbohydrates, performed by several types of bacteria.
Heterotroph	Organisms that rely on other organisms for their energy and food supply, also known as consumers.
Herbivore	Eat plants.
Carnivore	Eat animals.
Omnivore	Eat plants and animals.
Detrivores	Eat plant and animal remains and other dead matter, collectively called detrius.
Decomposer	Break down organic matter.
Food Chain	A series of steps in which organisms transfer energy by eating and being eaten.
Food Web	When the feeding relationships among the various organisms in an ecosystem form a network of complex interactions.
Cellular Respiration	Process that releases energy by breaking down glucose and other food molecules in the prescence of oxygen.
Trophic Levels	Each step in a food chain of a food web.
Ecological Pyrimad	Only about 10% of the energy avaiable within one trophic level is transferred to organisms at the next trophic level.
Biogeochemical Cycle	The Passing of the same molecules around again and again within the biosphere.
Limiting Nutrient	When an ecosystem is limited by a single nutrient that is scarce or cycles very slowly.
Algal Bloom	When an aquatic system recieves a large input of a limiting nutrient, the result is often of algae and other producers.

Created by: olive7076

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