Name:

An organism is...

• all the living and nonliving things in an area.
• the role of an organism in its ecosystem.
• something does not need energy, does not grow or reproduce, and does not require basic needs.
• any living thing.

Living means...

• the role of an organism in its ecosystem.
• all the living and nonliving things in an area.
• an organism that is no longer alive.
• able to take and use energy to grow and reproduce.

Once-living means...

• all the living and nonliving things in an area.
• an organism that is no longer alive.
• an organism that can take and use energy to grow and reproduce.
• something does not need energy, does not grow or reproduce, and does not require basic needs.

Nonliving is...

• any living thing.
• an organism that can take and use energy to grow and reproduce.
• something does not need energy, does not grow or reproduce, and does not require basic needs.
• living things depending on other living and/or nonliving things.

A niche is...

• the role of an organism in its ecosystem.
• all the living and nonliving things in an area.
• any living thing.
• an organism that can take and use energy to grow and reproduce.

An ecosystem is...

• all the living and nonliving things in an area.
• an organism that is no longer alive.
• something does not need energy, does not grow or reproduce, and does not require basic needs.
• living things depending on other living and/or nonliving things.

Interdependence means...

• the role of an organism in its ecosystem.
• all the living and nonliving things in an area.
• an organism that is no longer alive.
• living things depending on other living and/or nonliving things.

Which list correctly identifies only nonliving components of an ecosystem?

• leaves, seashells, soil, bacteria, and sunlight
• sunlight, rocks, owls, and rotting logs
• sunlight, soil, rocks, air, and seashells
• rotting logs, bacteria, owls, and insects

Interdependence is an important part of all ecosystems. How do plants and animals depend on each other?

• Plants depend on animals for food and water. Animals depend on plants for shelter and oxygen.
• Animals depend on plants for carbon dioxide and shelter. Plants depend on animals for energy.
• Plants depend on animals for shelter and oxygen. Animals depend on plants for energy and oxygen.
• Animals depend on plants for energy and oxygen. Plants depend on animals for carbon dioxide.