University:
Eastern Kentucky University
Course:
BIO 316 | Ecology
Academic year:

2023
Views:

208

Pages:

3
Author:

Kristopher Elliott

Principles of Ecology Study Guide B Answer Key SECTION 6. PYRAMID MODELS 1. biomass 2. heat, waste 3. From bottom of pyramid to top: producers, primary consumers, secondary consumers, tertiary consumers 4. an energy pyramid is a diagram that compares energy used by producers, primary consumers, and other trophic levels 5. a biomass pyramid is a diagram that compares the biomass of different trophic levels within an ecosystem 6. a pyramid of numbers is a diagram that shows the numbers of individual organisms at each trophic level in an ecosystem 7. biomass is a measure of the total dry mass of organisms in a given area 8. answers will vary depending on ecosystem Principles of Ecology Study Guide B Name ______________________________ Class ___________________ Date __________________ Section 6: Pyramid Models Study Guide B KEY CONCEPT Pyramids model the distribution of energy and matter in an ecosystem. VOCABULARY biomass energy pyramid MAIN IDEA: An energy pyramid shows the distribution of energy among trophic levels. Complete the following sentences with the correct terms. biomass heat waste 1. The measure of the total dry mass of organisms in a given area is called ___________________. 2. When a consumer incorporates the biomass of a producer into its own biomass, a large amount of energy is lost as ___________________ and ___________________. 3. Label the four tiers of the energy pyramid with the correct trophic level (producers, primary consumers, secondary consumers, tertiary consumers). 1 Study Guide B Principles of Ecology Section 6: Pyramid Models Name ______________________________ Class ___________________ Date __________________ Study Guide B continued MAIN IDEA: Other pyramid models illustrate an ecosystem’s biomass and distribution of organisms. Write a description of each pyramid model. Model Description 4. energy pyramid 5. biomass pyramid 6. pyramid of numbers Vocabulary Check 7. What is biomass? _______________________________________________________________ _______________________________________________________________ Make an Energy Pyramid 8. Choose an ecosystem. Research what types of plants and animals live in your chosen ecosystem. Draw an energy pyramid that might exist within that ecosystem. 2 Study Guide B Principles of Ecology Section 6: Pyramid Models