Lesson 1.04 Energy: The Energy-Matter Relationship

Try It

1. What is the SI unit of measurement for energy?

   Answer: Joules

2. What percentage of energy in a trophic level is available for the next trophic level to use?

   Answer: 10

3. If there are 165,000 Joules of energy are present in the producers level of an ecosystem, how many joules of energy will be available for the tertiary consumers?

   Answer: 165

4. If there are 25,000 Joules of energy in the primary consumer trophic level, how many Joules of energy are available to the secondary consumers?

   Answer: 2500

5. What is the living matter in an ecosystem called?

   Answer: Biomass

6. If there are 850 Joules of energy in the tertiary consumer level, how many Joules of energy were in the secondary consumer trophic level?

   Answer: 8500