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Food Web Worksheet. Part A: Use the marine food chain below to answer questions 1 to 5. 1. Identify the organism (s) that are producers. Phytoplankton (underwater microorganism which produces glucose by photosynthesis...so a plant more or less!) 2. Identify the organism (s) that are consumers. Zooplankton, Small Fish, Big Fish, Mammal. 3.
13.4 Food Chains and Food Webs. KEY CONCEPT Food chains and food webs model the flow of energy in an ecosystem. A food chain is a model that shows a sequence of feeding relationships. A food web shows a complex network of feeding relationships.
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 Webs There is more than one food chain in nature You have just learnt a lot about food chains, but there is not only one food chain in nature. This is because each organism's feeding habit and territory are different, which makes the feeding relationships among organisms more complicated.
A food web is one way of representing predator-prey relationships and the energy flow in a system. Looking at a food web is a great way to see the interac-tions between organisms and how these connections determine the health of an ecosystem. If there is an imbalance, every organ-ism in the food web is afected.
Describing the flow of energy within an ecosystem essentially answers this question. To survive, one must eat. Why? To get energy. Food chains and webs describe the transfer of energy within an ecosystem, from one organism to another. In other words, they show who eats whom.
HEALTHY DIETS FOR PEOPLE AND THE PLANET The ideal diet should be nutritious without threatening natural resources. Researchers are trying to decide what’s best for countries from Kenya to...
