7th Grade Ecosystem Interactions

An _ is comprised of all the biotic and abiotic factors in an area and all the interactions among them.

Competition among members of the same species.

• intraspecific competition

• interspecific competition

What is another word for something that is ALIVE or was ONCE LIVING

• Biotic

• Abiotic

What would be the best definition of an abiotic factor?

• All the living things in an ecosystem

• The biological components of the environment

• All of the non-living things in an ecosystem

• Mushrooms and bacteria decomposing a dead tree

If you were studying an African environment, and you saw a herd of elephants, what level of the biosphere are you observing?

• community

• organism

• ecosystem

• population

An organism that is "hunted" and "eaten" as food is called ______________________.

• Prey

• Predator

• Host

• Parasite

A ____________________ Relationship is when two living things "fight" for limited resources.

• Dependent

• Competitive

When bull elk fight for dominance in the herd, this is an example of

• Mutualism

• Competition

• Parasitism

• Symbiosis

organisms with the same habitat compete for the same resources in this relationship

• cooperative relationships

• predator-prey relationships

• competitive relationships

Living things depend on many different _________ in order to survive.

• resources
• environments
• ecosystems
• interactions