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Select four cards to create a food chain, starting with a producer. Label the trophic level of each organism in your food chain as follows: producer, primary consumer, secondary consumer, tertiary consumer. Record your food chain in the space below using species names and arrows.
Food Chains and Food Webs 1. Take a dish containing animal ingredients you just ate as an example to complete a food chain. (If you are a vegetarian, you can invite your classmates to provide you with a dish) Example ① Dish: Beef and choy sum stir-fry ② The animal I ate: Cows ③ That animal feeds on: Grass ④ ④ Feeding relationships:
Food webs are highly complex, with consumers feeding on many species (Figure 5). The large number of interactions tends to reduce the vulnerability of any one species to the loss or decline of another species. For this reason, complex food webs are thought to be more stable than simple food webs. Figure 5 A partial food web of the boreal forest.
A food web is made up of interconnected food chains. Most communities include various populations of producer organisms which are eaten by any number of consumer populations. The green crab, for example, is a consumer as well as a decomposer. The crab will eat dead things or living things if it can catch them.
Food Webs. A food web represents multiple pathways through which energy and matter flow through an ecosystem. It includes many intersecting food chains. It demonstrates that most organisms eat, and are eaten, by more than one species. Examples are shown in Figures below and below. Food Web. This food web consists of several different food chains.
20 sty 2015 · Brainstorm to create a list of 4 human activities that interfere with ecosystems, food chains and food webs. For each explain how it happens, why we do it, and mention short and long-term effects.
Overview. In this two-part lesson, students will develop food webs and investigate human impacts on marine ecosystems. In Part I, students will explore the ecological role of organisms in an ocean habitat and use information provided on Food Web Cards to develop food chains.
