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Ecological Pyramids Worksheet 1. Give one example of a food chain that exists in nature. 2. In an ecological pyramid, what happens to energy, biomass and # of species as you move up? Why? 3. What is biomass? 4. In an ecosystem, can there be more carnivores than herbivores? Explain why or why not? 5. What is the 10% rule? What is its significance?
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.
Answers to Student Worksheet 1. The supply of energy is greatest at the level of the autotrophs. The autotrophs are the most numerous organisms and get energy directly from the sun. 2. They all are herbivores, or plant-eating animals. 3. They all are carnivores, or meat-eating animals. 4. Plants produce their own food by the process of ...
In this worksheet, we will practice interpreting the interdependent relationships of organisms in ecosystems using food webs. Q1: Each link of the food chain is named according to what the organism eats and how it contributes to the energy of the ecosystem.
Each food chain ends with a top predator and animal with no natural enemies (like an alligator, hawk, or polar bear). Food Chain Questions 1. What travels through a food chain or web? 2. What is the ultimate energy for all life on Earth? 3. Food chains start with what? 4. The 1st organism in a food chain must always be what type of organism? 5.
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.
The food chain, food web, and energy pyramid are all models that show feeding relationships and allow us to make predictions. Compare and contrast the strengths and weaknesses of each model by filling in the table below.
