You and your students will love this versatile product! It contains three activities to support students in developing symbiosis mastery.
The three activities are:
Symbiosis Card Game (a Headway™ original)
Poster Making Sort
Concentration with a Twist
* Teacher tips
* Preparation directions (illustrated with photographs)
* 48 Symbiosis Relationship cards (color and black-and-white
versions provided; differentiated for at-level and advanced readers
* Symbiosis Card Game Rules handouts
* Symbiosis Card Game score cards
* Symbiosis Card Game answer keys
* Answer keys for “Concentration with a Twist”
* Optional headings for Poster Sort
Symbiosis is a close, prolonged association between two or more different organisms of different species that may, but not necessarily, benefit each member. At the middle school level, the focus is on the following symbiotic relationships: predator-prey, mutualism, parasitism and commensalism. In a predator –prey relationship, one organism hunts, captures and consumes another organism (prey). The prey typically has adaptations that help them avoid predation. Examples of organisms in a predator-prey relationship are lion/zebra and polar bear/seal. In a mutualistic relationship, both organisms benefit. Examples of mutualism are clownfish/sea anemone and aphids/ants. Over time two organisms may evolve into one organism, as seen with lichens. Lichen is a plant where strands of algae have linked to the roots and branches of fungus. Together these organisms conduct photosynthesis and obtain minerals from the ground. In this situation, what was once a mutualistic relationship has evolved into a single organism. In a parasitic relationship, one organism (the parasite) benefits and the organism (the host) is harmed. Examples of parasitism are botfly/humans and dodder/shrub. In commensalism, one organism benefits and the other one neither benefits nor is harmed. Examples of commensalism are flatworm/horsecrab and cattle egrets/cattle.