Energy Flow in Ecosystems I Thermodynamics A n
- Slides: 21
Energy Flow in Ecosystems
I. Thermodynamics A. n = the study of energy transfer that occurs in matter = anything that has mass & takes up space
B. The Laws of Thermodynamics 1. First Law of thermodynamics Energy can neither be created nor destroyed. However: It can change form……. . Light ->->Heat
The Laws of Thermodynamics 2. Second Law of thermodynamics Energy transformations lead to an increase in ENTROPY in a system. Entropy = disorder (chaos) n Order ->->-> Disorder n Entropy always increases. n
II. Energy transformations in an ecosystem A. Producers (primary energy sources) Plants are producers. 1. E travels via Ultra-violet light from Sun to plants 2. Plants (by photosynthesis) make own food to store E as glucose (sugar) (E = energy)
II. Energy transformations in an ecosystem B. Consumer = organism that eats plants or other organisms to get E
Energy transformations in an ecosystem C. Detrivore n = breaks dead matter into smaller pieces to help recycle it n E. g. worms, maggots, crabs, millipedes
Energy transformations in an ecosystem D. Decomposer = agent of decay Recycles the nutrients in dead bodies to return them to the ecosystem E. g. bacteria, fungi
Energy transformations in an ecosystem
Energy Flow in an Ecosystem
III. Trophic levels (-troph= feeder) Trophic level = feeding level; levels of an ecosystem that E flows through Energy pyramid
IV. Energy Loss Between Trophic Levels n Only 10% 0 f E moves from one trophic level to the next
∴(therefore) 90% of E is lost to heat for each trophic level we go up
¿Why does it take so many mice to feed one hawk? 90% E lost each trophic level we go up
V. Food Chains Food chain = the path that E takes through the trophic levels
Food Chain Examples
VI. Feeding patterns pattern definition example
VI. Feeding patterns pattern herbovore carnivore omnivore definition example
VI. Feeding patterns pattern definition example herbivore Plant eater Deer, mouse carnivore Meat eater Lion, dog omnivore Eater of plants & animals Bear, pig, human
VI. Feeding patterns pat
VI. Feeding patterns pattern definition example Filter feeder Filters food from water Baleen whales, flamingoes Detrivore Eater of dead organic matter Decomposer Breaks dead matter to the molecular level, returns nutrients to the envt. Maggots, crabs, worms, millipedes Bacteria, fungi
- Chapter 4 lesson 2 energy flow in ecosystems answer key
- Energy in ecosystems lesson 3 answer key
- Flow of energy
- Primary consumer definition
- Section 1 energy flow in ecosystems
- First law of thermodynamics for open system
- Ecological succession
- Oikos meaning
- Section 3 energy in ecosystems
- Chapter 42 ecosystems and energy
- How does energy flow in an ecosystem
- Lesson 3 energy and matter in ecosystems answer key
- Lab food chains and energy in ecosystems
- Do birds eat squirrels
- Energy transfer in ecosystem
- Food chain for class 6
- Steady flow process thermodynamics
- What is flow work in thermodynamics
- Internal energy formula thermodynamics
- Internal energy in thermodynamics definition
- Example of adiabatic process
- First law of energy conservation