Ecosystems and Biomes

Chapter 2 Review

Eats other organisms.

Consumers

If a fox eats a bunny, and the bunny eats grass, what type of consumer is the fox?

Second-level consumer

Makes its own food.

producers

Best way to represent a large complex system (ex. water cycle).

computer model

In which process do producers use carbon from carbon dioxide to produce other carbon-containing molecules?

photosynthesis

What shape would the carbon cycle be in a physical model?

circular

Group of land ecosystems with similar climates and organisms.

biome

Ponds and rivers are what types of ecosystems?

Fresh water

Organisms that were brought by humans from one part of the world to another.

Exotic species

Overlapping food chains in an ecosystem.

Food web

Biome that is extremely cold and dry.

tundra

Break down the remains of dead organisms.

decomposers

Frozen soil in the tundra.

permafrost

Process by which a gas turns to a liquid.

condensation

Movement of organisms from one place to another. (ex. Spider moved by wind)

dispersal

Changing free nitrogen into a usuable form.

Nitrogen fixation

Eats only animals.

carnivore

Eats only plants.

herbivore

Eats both plants and animals.

omnivore

Second-level consumers(2).

Carnivores

Omnivores

Producers release _____ as a product of photosynthesis.

oxygen

Feeds on dead organisms.

scavenger

Trees that lose their leaves each year.

Deciduous trees

Biome that has many grasses.

grassland

Shows energy moving from one feeding level to another.

Energy pyramid

Organisms eating other organisms in a series of events.

Food chain

Rain, snow, sleet, or hail (anything wet falling to Earth).

precipitation

Process by which a liquid changes to a gas.

evaporation

Where the fresh water of a river meets the salt water of the ocean.

estuary

Tallest layer of the rainforest.

Emergent layer

Leafy roof under the emergent layer in a rainforest.

canopy

Layer of shorter trees under the canopy.

understory

Annual average temperature and precipitation.

climate