energy transfer in ecosystem vocabulary trophic = nutrition –autotrophs –heterotrophs

Energy Transfer in Ecosystem Vocabulary • Trophic = nutrition – Autotrophs – Heterotrophs

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Energy Transfer in Ecosystem

Vocabulary

• Trophic = nutrition– Autotrophs

– Heterotrophs

Autotrophs (Producers)

Page 3: Energy Transfer in Ecosystem Vocabulary Trophic = nutrition –Autotrophs –Heterotrophs

Heterotrophs (Consumers)

Heterotrophs

• Consumers1. Scavengers feed on the tissue of dead

organisms (both plans and animals)

Heterotrophs

• Consumers2. Herbivores eat ONLY plants.

Heterotrophs

• Consumers3. Carnivores eat ONLY animals.

Heterotrophs

• Consumers4. Omnivores eat BOTH plants and animals

Heterotrophs

• Decomposers absorb any dead material and break it down into simple nutrients or fertilizers

Transfer of Energy

Page 10: Energy Transfer in Ecosystem Vocabulary Trophic = nutrition –Autotrophs –Heterotrophs

Trophic Levels…

…represent different levels in a food web.

Page 11: Energy Transfer in Ecosystem Vocabulary Trophic = nutrition –Autotrophs –Heterotrophs

Food Webs• We represent the energy flow from one trophic

level to another as a food web.• (Most organisms eat more than one different

species.)

Page 12: Energy Transfer in Ecosystem Vocabulary Trophic = nutrition –Autotrophs –Heterotrophs

Food Web

• Notice that the direction the arrow points

• The arrow points in the direction of the energy transfer, NOT “what ate what”.

Page 13: Energy Transfer in Ecosystem Vocabulary Trophic = nutrition –Autotrophs –Heterotrophs

Ecological Pyramid

1. Which level has the most energy?2. Which level has the most

organisms?3. Which level has the fewest

organisms?4. Which level has the least energy?

Page 14: Energy Transfer in Ecosystem Vocabulary Trophic = nutrition –Autotrophs –Heterotrophs

Ecological Pyramid

Photosynthesis Chapter 10 Energy source Autotrophs: Producers Make own organic molecules Heterotrophs: Consumers

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· Web viewdistinguish between autotrophs and heterotrophs in terms of nutrient requirements Autotrophic means ‘self-feeding’. Autotrophs are organisms that make their own food

Energy and Life. Energy Energy is the ability to do work or the capacity to cause change. Autotrophs and Heterotrophs –Autotrophs – make their own food

Chapter 8 Photosynthesis. Autotrophs vs. Heterotrophs Autotrophs are organisms that can make their own food ◦ Use light energy from the sun to produce

Cellular Respiration. Both autotrophs and heterotrophs use the compounds in food for energy sources. Autotrophs make their own glucose. Heterotrophs

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energy transfer in ecosystem vocabulary trophic = nutrition –autotrophs –heterotrophs

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