Mr. Poplar introduces ecology, defining it as the study of interactions among living things and their environment. He explains key concepts such as organisms, populations, communities, and ecosystems, using examples like eagles, bees, and beavers. The video emphasizes the importance of interactions and the structure of ecological systems, concluding with a summary of the main ideas.

What is the primary focus of ecology?

• The study of how living things interact with each other and their environment

• The study of celestial bodies

• The study of human history

• The study of non-living things

Which of the following is an example of a beneficial interaction in ecology?

• A lion chasing a zebra

• An eagle hunting a fish

• A cat catching a mouse

• A bee pollinating a flower

What defines an organism in ecological terms?

• Any non-living thing

• A specific type of habitat

• A group of similar species

• Any living thing

What constitutes a population in ecology?

• A single organism

• A group of different species living together

• All members of one species in a particular area

• All living and non-living things in an area

Which of the following is NOT part of a community in ecological terms?

• All the elk in an area

• All the ants in an area

• All the grass in an area

• The air in the area

What is the difference between a community and an ecosystem?

• There is no difference

• A community is larger than an ecosystem

• An ecosystem includes non-living things, while a community does not

• A community includes non-living things, while an ecosystem does not

Which of the following best describes a community?

• All the different populations living together in an area

• A single species in a specific area

• A group of non-living things

• All living and non-living things in an area

What is the largest level of organization in ecology before biomes?

• Ecosystem

• Community

• Population

• Organism

Which of the following is NOT a level of organization in ecology?

• Organism

• Habitat

• Population

• Community

What is the role of non-living things in an ecosystem?

• They are part of the community

• They only affect the population

• They are included in the ecosystem along with living things

• They are not part of an ecosystem