SC.912.L.17.9 Explain the pathway of energy transfer through trophic levels and the reduction of available energy at successive trophic levels. What do you need to know? 0 . - ● D → Key Terms: # analyze a food web to identify producers, consumers, and decomposers explain the pathway of energy transfer through trophic levels and the reduction of available energy at successive trophic levels • autotroph . describe how matter and energy move through the water and carbon cycles compare and contrast the relationships among organisms such as mutualism, commensalism, competition and parasitism commensalism • condensation @ consumer e decomposer e ecosystem * energy carbon cycle carnivore energy pyramid • • • Ⓡ ● @ . . * Review Questions: . What are the producers in this food web? evaporation food chain food web herbivore heterotroph law of conservation of energy matter mutualism omnivore What are the primary consumers (herbivores) in this food web? What are the secondary consumers in this food web? What are the highest level consumers in this food web? bees blossoms deer nuts 8 • ▸ 0 · tertiary consumer transpiration e trophic level water cycle • bear parasitism primary consumer producer secondary consumer wolf. mice rabbit bark OAK red fox skunk toad insects leaves birds blossoms

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SC.912.L.17.9 Explain the pathway of energy transfer through trophic levels and the reduction of
available energy at successive trophic levels.
What do you need to know?
4
a
analyze a food web to identify producers, consumers, and decomposers
explain the pathway of energy transfer through trophic levels and the reduction of available energy at
successive trophic levels
→
describe how matter and energy move through the water and carbon cycles
compare and contrast the relationships among organisms such as mutualism, commensalism,
competition and parasitism
Key Terms:
• autotroph
carbon cycle
D carnivore
✔ commensalism
• condensation
• consumer
e decomposer
e ecosystem
* energy
energy pyramid
•
+
Ⓡ
●
@
.
。
evaporation
food chain
food web
Review Questions:
1. What are the producers in this food web?
herbivore
heterotroph
law of conservation of
. mutualism
omnivore
energy
matter
2. What are the primary consumers (herbivores) in
this food web?
3. What are the secondary consumers in this food
web?
4. What are the highest level consumers in this
food web?
bees
blossoms
5. How does energy and matter move through a food web?
deer
nuts
3. What is a food chain? Give an example of one from this food web.
mice
→
●
●
•
e
•
bear
parasitism
primary consumer
producer
secondary consumer
tertiary consumer
transpiration
trophic level
water cycle
wolf.
rabbit
bark
ÇAK
red fox
skunk
toad
insects
leaves
birds
blossoms
Transcribed Image Text:SC.912.L.17.9 Explain the pathway of energy transfer through trophic levels and the reduction of available energy at successive trophic levels. What do you need to know? 4 a analyze a food web to identify producers, consumers, and decomposers explain the pathway of energy transfer through trophic levels and the reduction of available energy at successive trophic levels → describe how matter and energy move through the water and carbon cycles compare and contrast the relationships among organisms such as mutualism, commensalism, competition and parasitism Key Terms: • autotroph carbon cycle D carnivore ✔ commensalism • condensation • consumer e decomposer e ecosystem * energy energy pyramid • + Ⓡ ● @ . 。 evaporation food chain food web Review Questions: 1. What are the producers in this food web? herbivore heterotroph law of conservation of . mutualism omnivore energy matter 2. What are the primary consumers (herbivores) in this food web? 3. What are the secondary consumers in this food web? 4. What are the highest level consumers in this food web? bees blossoms 5. How does energy and matter move through a food web? deer nuts 3. What is a food chain? Give an example of one from this food web. mice → ● ● • e • bear parasitism primary consumer producer secondary consumer tertiary consumer transpiration trophic level water cycle wolf. rabbit bark ÇAK red fox skunk toad insects leaves birds blossoms
7. Create an energy pyramid from the food chain:
leaves insects → birdsredfox → bear
8. Where is the most energy in this pyramid?
9. Where is the least energy in this pyramid?
10. What happens to energy as it moves through the
food chain/web?
11. What percent of energy is "lost"?
12. How much is passed on?
13. Assume there are 10,000 kcal of energy in the leaves.
Estimate the amount of energy in each of the other levels of the energy pyramid.
1st Trophic Level: 10,000 kcal 2nd Trophic Level:
3rd Trophic Level:
4th Trophic Level:
5th Trophic Level:
14. What is the ultimate source of energy for this food web?
15. Symbiosis is a close relationship between two species in which at least one species benefits. For the other
species, the relationship may be positive, negative, or neutral.
Complete the table about species relationships:
Type of Relationship
mutualism
commensalism
parasitism
competition
Symbiosis
Definition
Example
Transcribed Image Text:7. Create an energy pyramid from the food chain: leaves insects → birdsredfox → bear 8. Where is the most energy in this pyramid? 9. Where is the least energy in this pyramid? 10. What happens to energy as it moves through the food chain/web? 11. What percent of energy is "lost"? 12. How much is passed on? 13. Assume there are 10,000 kcal of energy in the leaves. Estimate the amount of energy in each of the other levels of the energy pyramid. 1st Trophic Level: 10,000 kcal 2nd Trophic Level: 3rd Trophic Level: 4th Trophic Level: 5th Trophic Level: 14. What is the ultimate source of energy for this food web? 15. Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. Complete the table about species relationships: Type of Relationship mutualism commensalism parasitism competition Symbiosis Definition Example
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Follow-up Question
7. Create an energy pyramid from the food chain:
leaves insects → birdsredfox → bear
8. Where is the most energy in this pyramid?
9. Where is the least energy in this pyramid?
10. What happens to energy as it moves through the
food chain/web?
11. What percent of energy is "lost"?
12. How much is passed on?
13. Assume there are 10,000 kcal of energy in the leaves.
Estimate the amount of energy in each of the other levels of the energy pyramid.
1st Trophic Level: 10,000 kcal 2nd Trophic Level:
3rd Trophic Level:
4th Trophic Level:
5th Trophic Level:
14. What is the ultimate source of energy for this food web?
15. Symbiosis is a close relationship between two species in which at least one species benefits. For the other
species, the relationship may be positive, negative, or neutral.
Complete the table about species relationships:
Type of Relationship
mutualism
commensalism
parasitism
competition
Symbiosis
Definition
Example
Transcribed Image Text:7. Create an energy pyramid from the food chain: leaves insects → birdsredfox → bear 8. Where is the most energy in this pyramid? 9. Where is the least energy in this pyramid? 10. What happens to energy as it moves through the food chain/web? 11. What percent of energy is "lost"? 12. How much is passed on? 13. Assume there are 10,000 kcal of energy in the leaves. Estimate the amount of energy in each of the other levels of the energy pyramid. 1st Trophic Level: 10,000 kcal 2nd Trophic Level: 3rd Trophic Level: 4th Trophic Level: 5th Trophic Level: 14. What is the ultimate source of energy for this food web? 15. Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. Complete the table about species relationships: Type of Relationship mutualism commensalism parasitism competition Symbiosis Definition Example
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