things that makes the land, water, or air dirty and unsafe

a thing that is not reusable

the presence of dirty and unsafe things in the land, water, or air

an organism with structures.

physical structures that help an organism survive in its environment.

a group of related individuals that resemble one another.

changes to the natural world that can be caused by nature and/or humans

when an animal(birds) moves a long distance on a seasonal basis

something an organism does to survive in its environment

cooperation

communication

singing

listening

when an animal( birds) moves a long distance on a seasonal basis

something an organism does to survive in its environment

a route regularly used by large numbers of migrating birds

a thing that makes the land, water, or air dirty and unsafe

a thing that is not reusable

the presence of dirty and unsafe things in the land, water, or air

species

behavioral adaptation

structural adaptation

society

species

communication

society

cooperation

Living things work together for something that benefits all of them

a group of living things that live and work togther

a group of related individuals that resemble one another

sleep for the winter

move a long distance on a seasonal basis

live and work together

a characteristic that can be observed

physical structures that help an organism survive in its environment

the function of an organism