NV APES- Living World

low in nutrients

When two species have a win-win relationship with each other

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EX: humans and bacteria in intestines-we can survive and the bacteria get fed


When two species share a win-lose relationship, one species harms another

EX: Sea lamprey and any other species


When two species share a win-no benefit relationship

EX: moss and trees-moss gets a place to grow, trees are not harmed or helped in the process

When a species helps maintain an ecosystem, and without it the ecosystem has a bunch of problems that cause harm to the animals within the system
When something is native to an area and can not be found anywhere else