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The field trip to Elk Island Park taken by both biology twenty classes was an interesting and fun day We learnt about many different types of plant and animal life in different ecosystems and how they contribute to their ecosystem The two main ecosystems we looked at in detail were the marsh and the bog We look at and recorded facts about the abiotic and biotic factors in the area to better understand the importance of these ecosystemsThe first thing we learnt about was some of the biotic animals insects and water creatures found in the park In the amphitheatre we were able to see the different types of animals found in the park how we were expected to act around the animals and how they live in their environment We talked about the bison found in the park and how we should stay a safe distance away from them We then saw a film on the insects plants amphibians and animals found in the marsh The purpose of this was to help us to be able to identify these invertebrates in the water and to tell us how they are important to their ecosystem These invertebrates found in the marsh are a part of a long and complicated food web found in that small ecosystem The plants animals insects and amphibians fall into the first three stages of the food web which in turn start the food chain Plants in the marsh are eaten by the insects which are eaten by other insects and amphibians Our job was to identify these creatures and place them into a category producers consumers and secondary consumers according to how they live in the marshAs a group we were able to catch many of these invertebrates present in the marsh We caught water boatmen minnows snails caddisfly larva water striders leaches whirligig beetle and fresh water shrimp The food chain found in the marsh started with algae and
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