6.12C- Ecological Levels DOL

Which of the following best defines an organism in an ecosystem?

• A. A group of individuals of the same species living in a specific area

• B. A collection of different species interacting in the same habitat

• C. A single living individual that can grow, reproduce, and respond to its environment

• D. The combination of all living and non-living components in an area

Which term does the letter X represent in the graphic organizer?

• Cell

• Organism

• Ecosystem

• Biosphere

Which of the following best describes the hierarchical organization within an ecosystem from smallest to largest?

• Population, organism, community

• Organism, community, population

• Community, population, organism

• Organism, population, community

Which best describes how ecosystems are broken down?

• Ecosystems are broken down into communities made of organisms, which are made of populations that live in the same area.

• Ecosystems are broken down into communities made of populations, which are made of organisms that live in the same area.

• Populations are made of communities of the same species that live in the same area.

• Ecosystems are made of communities that live in the same area.

Which of the following best describes a population in an ecosystem?

• All the living and nonliving things in an area

• All members of the same species living in the same area

• Different species interacting in an ecosystem

• A group of ecosystems working together

Which of the following is an example of a population in a forest ecosystem?

• A. A single squirrel gathering acorns

• B. All the birds, trees, and insects living in the forest

• C. A group of oak trees growing in the same area

• D. A mixture of robins, squirrels, and maple trees in the forest

On a coral reef, a marine biologist studies a school of clownfish living among sea anemones. The clownfish interact with one another, breed, and rely on the same resources. What level of ecological organization is the school of clownfish?

• A. Organism

• B. Population

• C. Community

• D. Ecosystem

Based on the information in the table, which hierarchical level is represented by the squirrels?

• A. The squirrels represent a single organism.

• B. The squirrels represent a population.

• C. The squirrels represent a community.

• D. The squirrels represent an ecosystem.

Zebras in the image represent the population level of organization in an ecosystem. Which hierarchical level of organization do they primarily illustrate?

• Organism

• Population

• Community

• Ecosystem

Tags

NGSS.MS-LS2-1

What best defines a community in an ecosystem?

• All individuals of the same species in an area

• All populations of different species living together in an area

• The non-living factors in an environment

• A single organism and its habitat