Great for elementary and middle school as an intro to new material. In cartoons, we might see different organisms being either friends or enemies, but in nature it's much more complicated. In this article, students will read how symbiotic relationships change the way both organisms live, and some can be mutualistic (good for both). Some relationships are parasitic (take, hurt, take) and others are more commensal which help one organism involved and don't hurt the other.
Vocab words: mutualism, parasitism, commensalism, symbiotic
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