Levels of organization
Obtaining Energy
Flow of Energy
Ecosystem Relationships
Terrestrial Biomes
100

What is an organism?

One individual of a species
100

What is an autotroph?

An organism that uses sunlight or chemicals to make organic compounds (sugar) from inorganic compounds (carbon dioxide and water).

100

What is a food chain?

Shows one interaction in an ecosystem where energy is transferred from one organism to the next as organisms are consumed.
100

What is a habitat?

The physical place or area where an organism lives

100

What is a tropical rainforest?

A biome characterized by a warm climate and large amounts of rain and sunlight

200

What is a population?

A group of the same species in the same area at the same time.

200

What is a heterotroph?

An organism that must consume other plants or animals to obtain energy

200

What is a food web?

Shows all of the feeding relationships among organisms in an ecosystem
200

What is a niche?

The ROLE of an organism in its environment

200

What is a desert?

A biome that receives less than 25cm of rainfall, has warm temperatures during the day and cold temperatures at night, and nutrient-poor soil

300

What is a community?

All of the living things in the same area

300

What is a herbivore?

An organism that gains energy by eating only plants

300

What is a trophic level?

An organism's feeding level is an ecosystem based on its nutritional source

300

What is mutualism?

A relationship in which two or more organisms live together and both organisms benefit

300

What is a deciduous forest?

Characterized by trees that lose their leaves in the fall, nutrient-rich soil, and year-round precipitation
400

What is an ecosystem?

All of the living species and the nonliving environment

400

What is a carnivore?

An organism that gains energy by eating only animals

400

What is an energy pyramid?

A diagram that demonstrates the amount of energy in each trophic level

400

What is parasitism?

A relationship in which one organism lives in or on another organism and harms it by taking nutrients from it.

400

What is a taiga?

A biome characterized by coniferous trees, long, cold winters, and summers that allow the ground to thaw.

500

What is a biome?

An area on land that shares a similar climate, soil condition, and dominant type of vegetation. Includes living species, nonliving environment, and the weather

500

What is an omnivore?

An organism that gains energy by eating both plants and animals

500

What is a biomass pyramid?

A diagram that demonstrates the amount of each organism in a trophic level

500

What is commensalism?

A relationship in which one organism benefits from another organism and that organism is neither harmed nor helped

500

What is a tundra?

A biome characterized by low growing vegetation and a layer of permafrost in the subsoil

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