Levels of Ecological Organization and Earth's Spheres

The ________ includes the entire planet and all of its living and nonliving parts.

• ecosystem

• biosphere

• lithosphere

• community

A collection of interacting populations together with all abiotic components in the same area is a(n)

• community

• populaltion

• ecosystem

• organism

Which example BEST illustrates the biological concept of a community?

• A tropical reef aquarium with many different types of fish and corals.

• The temperate grassland ecosystem in the American midwest.

• A herd of bison living in Yellowstone Park.

• All of the blue whales in the world.

Tags

NGSS.MS-LS2-2

Which example best illustrates the difference between a community and a population?

• All the people in a town would be a community; all the people in a country would be a population

• The two terms are interchangeable, a population IS a community.

• All the people in a town would be a community; all their cattle would be a population.

• All the different animals in a national park would be a community; all of the brown bears in the park would be a population.

In the organization of living and nonliving things, a ______________ would include the largest number of individuals.

• species

• community

• ecosystem

• population

An ecologist studied the effect of biotic and abiotic factors on a population of bacteria at the bottom of a pond. His study would include all BUT which levels in the structural hierarchy of life?

• ecosystem

• organs

• population

• cells

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

All of the elephants living in a wildlife preserve would be considered a

• population

• individual

• group

• community

All of the squirrels, grass, oak trees, and turtles in a forest would be considered a

• habitat

• species

• community

• populaltion

The biosphere is the highest level of organization in the hierarchy of life on earth. Rank the levels of organization from most complex to simples

• ecosystems > communities > populations > organisms

• organisms > populations > communities > ecosystems

• ecosystems > organisms > communities > populations

• populations > communities > ecosystems > organisms

Ecologists study how relationships between biotic and abiotic factors impact the many levels of organization on earth. What level of organization is defined as the interaction between organisms in a community and the environment in which they live?

• ecosystem

• population

• community

• organism

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3