Ecosystems: Levels of Organization

Which of the following is a population?

• hawks, barred owls, and eagles on NC coast

• mountain stream

• all the frogs in a pond

• blue-tailed skinks (lizards) around a barn

What level of organization can be observed in the image?

• Species
• Population
• Community
• Ecosystem

Living factors or organisms that affect an ecosystem are

• abiotic factors

• species

• trophic level

• biotic factors

What are the biotic factors in this image?

• sunlight, elephants, and grasses

• sunlight, water, and air

• elephants, plants, trees

The organisms in a community, as well as all of the nonliving aspects of the environment are a(n):

• Population

• Community

• Habitat

• Ecosystem

What is it called when you have groups of different populations along with their abiotic factors?

• An organism

• A population

• A community

• An ecosystem

A duck, a dragonfly, a morel mushroom and a bobcat are all examples of...

• organisms.
• populations.
• communties.
• ecosystems.

What are the ecological levels of organization from smallest to the largest?

• organism, population, community, ecosystem, biome, biosphere
• organism, community, population, ecosystem, biome, biosphere
• organism, population, community, biome, ecosystem, ecosphere.
• organism, community, population, biome, ecosystem, ecosphere

What is a group of ecosystems that share similar climates and types of organisms called?

• A community

• A biome

• An ecosystem

• A biosphere

What level of organization can be seen here?

• Species

• Population

• Community

• Ecosystem