The transfer of food energy from organisms in one nutritional level to those in another

A complex and interlocking series of food chains showing the movement of energy and nutrients

The feeding positions of all organisms in a specific ecosystem

Organisms that make their own food using in-organic materials and energy sources, such as sunlight, aka autotrophs

Herbivores, or organisms that only eat plants and algae

A specialized type of carnivore that feeds on primary consumers or herbivores

Includes carnivores and omnivores which eat the animals that belong to the third level

Animals on top of the food chain which have no predators of their own. These predators help to maintain sustainable population levels.

Generalists eat a variety of foods and thrive in a range of habitats

Specialists only eat certain foods and require specific habitat requirements

A keystone species is an organism that defines and holds an ecosystem together

Species that create, modify, and maintain the landscape around them. They define the overall biodiversity of their environment.

Mutualists are two or more species that engage reciprocally, each benefitting from the relationship

Organisms that only exist in one geographic region

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SECTION 3 KEY VOCAB

envirothon

Question	Answer
Food Chain	The transfer of food energy from organisms in one nutritional level to those in another
Food Web	A complex and interlocking series of food chains showing the movement of energy and nutrients
Trophic Levels	The feeding positions of all organisms in a specific ecosystem
Primary Producer	Organisms that make their own food using in-organic materials and energy sources, such as sunlight, aka autotrophs
Primary Consumer	Herbivores, or organisms that only eat plants and algae
Secondary Consumer	A specialized type of carnivore that feeds on primary consumers or herbivores
Tertiary Consumer	Includes carnivores and omnivores which eat the animals that belong to the third level
Apex Predator	Animals on top of the food chain which have no predators of their own. These predators help to maintain sustainable population levels.
Generalist Species	Generalists eat a variety of foods and thrive in a range of habitats
Specialist Species	Specialists only eat certain foods and require specific habitat requirements
Keystone Species	A keystone species is an organism that defines and holds an ecosystem together
Ecosystem Engineer	Species that create, modify, and maintain the landscape around them. They define the overall biodiversity of their environment.
Mutualist/Mutualism	Mutualists are two or more species that engage reciprocally, each benefitting from the relationship
Endemic Species	Organisms that only exist in one geographic region

Created by: user-1981550

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