Ecology: Trophic Levels and Organization

This is the role of a species in an ecosystem, consisting of such things as what it eats, when it eats, and how it interacts with the rest of the ecosystem.

• Food Web

• Niche

• Energy Pyramid

• Habitat

Tags

NGSS.MS-LS2-2

Which is a biotic factor in a marine ecosystem?

• floating minerals

• rocks on the seafloor

• salt content of the water

• photosynthesis performing plants

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is defined as all of the members of a single species that live in a particular area?

• organisms

• ecosystems

• populations

• communities

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What level of ecological organization is defined as the interaction between organisms in a community and the environment in which they live?

• organisms

• ecosystems

• populations

• communities

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which example best illustrates the difference between a community and 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 of the organisms in a forest would be a community, a group of squirrels in the forest would be a population.

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

• biosphere

• community

• ecosystem

• lithosphere

The community of a pond is make of all of the

• populations of fish, insects, and other living organisms.

• habitats in and around the water.

• resources organisms need.

• abiotic factors in the water.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which label would go on step 1 of the pyramid?

• Autotroph

• Heterotroph

Tags

NGSS.MS-LS2-3

Which label would go on steps 2, 3, and 4 of the pyramid?

• Autotroph

• Heterotroph

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Assuming there is 100% availability of energy for the primary producers for a food chain, which statement describes the energy availability at other levels of the food chain?

• Energy availability decreases at each successive trophic level.

• Energy availability remains constant at each trophic level.

• Energy availability increases at each successive trophic level.

• Energy availability is highest at the top trophic level.

Tags

NGSS.MS-LS2-3