Ecosystems Biology Final Study Guide

Biomass

• Renewable organic material that comes from plants and animals

• The number of people, other living organisms, or crops that a region can support without environmental degradation

• An organism that feeds on primary producers. Herbivores

• A non-living part of an ecosystem that shapes its environment

Biodiversity

• The variety of life in the world or in a particular habitat or ecosystem

• Carnivores that eat other carnivores

• An organism that feeds on primary producers. Herbivores

• Any step in a nutritive series, or food chain, of an ecosystem. Organisms are classified into levels on the basis of their feeding behavior

Carrying Capacity

• The number of people, other living organisms, or crops that a region can support without environmental degradation

• An organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.

• A living organism that shapes its environment

• Carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs

Trophic Levels

• Any step in a nutritive series, or food chain, of an ecosystem. Organisms are classified into levels on the basis of their feeding behavior

• Renewable organic material that comes from plants and animals

• The number of people, other living organisms, or crops that a region can support without environmental degradation

• Carnivores that eat other carnivores

Decomposer

• An organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.

• Carnivores that eat other carnivores

• Carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs

• An organism that feeds on primary producers. Herbivores

Tertiary Consumer

• Carnivores that eat other carnivores

• Carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs

• An organism that feeds on primary producers. Herbivores

• Organisms that make their own food. They get energy from chemicals or the sun, and with the help of water, convert that energy into useable energy in the form of sugar, or food.

Secondary Consumer

• Carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs

• Carnivores that eat other carnivores

• An organism that feeds on primary producers. Herbivores

• Organisms that make their own food. They get energy from chemicals or the sun, and with the help of water, convert that energy into useable energy in the form of sugar, or food.

Primary Consumer

• An organism that feeds on primary producers. Herbivores

• Carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs

• Carnivores that eat other carnivores

• Organisms that make their own food. They get energy from chemicals or the sun, and with the help of water, convert that energy into useable energy in the form of sugar, or food.

Producer

• Organisms that make their own food. They get energy from chemicals or the sun, and with the help of water, convert that energy into useable energy in the form of sugar, or food.

• Carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs

• Carnivores that eat other carnivores

• An organism that feeds on primary producers. Herbivores

Abiotic Factors

• A non-living part of an ecosystem that shapes its environment

• A living organism that shapes its environment

• An organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.

• Renewable organic material that comes from plants and animals