activities in science 8
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Republic of the PhilippinesDepartment of Education
Region V (Bicol)DIVISION OF LEGAZPI CITY
Legazpi City
COMPETENCY:
Describe the transfer of energy through the Trophic Levels.
Name:____________________________________ Grade & Section:_____________________________
Food Chain Trophic Levels - Worksheet
1. What is a trophic level? What does it show us?
2. What is an autotroph?
3. What is a heterotroph?
4. If you have 1000 Kg of cattle that need to be fed on a ranch, how much grass must be available for them to eat?
5. What is carrying capacity? How is it affected by limiting factors?
If the sun provides 1000% ENERGY to producers, What is the energy level in percentage (%) available at each trophic level? Please explain using the energy pyramid.
Producer
1st level consumer
2nd level consumer
3rd level consumer
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