ENERGY

Objectives OUR Objectives: Examine and categorize feeding relationships

ENERGY What is the ULTIMATE SOURCE of energy for a MOST ecosystems? Energy is then transferred within ecosystems from one organism to another.

Feeding Relationships There are 3 main types of feeding relationships 1. Producer - Consumer 2. Predator - Prey 3. Parasite - Host How do they trap the sun’s energy? Through what process? What is that process similar to in animal cells?

Feeding Relationships Consumer- all heterotrophs: they ingest food containing the sun’s energy Herbivores Carnivores Omnivores Decomposers Energy moves up the food chain through the producer/consumer relationship.

HETEROTROPH: REMEMBER THE EQUATION FOR CELLULAR RESPIRATION HETEROTROPH: REMEMBER THE EQUATION FOR CELLULAR RESPIRATION! HETERO = OTHER TROPH = FEEDER

Feeding Relationships Autotroph- all producers (plants), they trap energy from the sun They are the Bottom of the food chain and necessary for life on earth. Think Wall-E How do they trap the sun’s energy? Through what process? What is that process similar to in animal cells?

Photoautotroph – use sunlight energy AUTOTROPHS SELF FEEDERS: Photoautotroph – use sunlight energy Chemoautotroph – use chemicals as energy

REMEMBER THE EQUATION FOR PHOTOSYNTHESIS… AUTOTROPH: REMEMBER THE EQUATION FOR PHOTOSYNTHESIS…

Photo vs Chemo SYNTHESIS

Producer or Consumer?

VIDEO

?

review Autotroph – Makes its own food = PRODUCER Video – producer VS Consumer review Autotroph – Makes its own food = PRODUCER Chemo and photo Heterotroph – Eat others = CONSUMER Consumers and Decomposers Carnivorous Plants are photoautotrophs and a only a heterotroph to supplement his diet.

Herbivore , Carnivore , Omnivore What are we missing in this category? Decomposers: scavengers, detritivores and saprotrophs – Eat dead things and are considered Heterotrophs. Scavengers eat soft tissue Detritivores eat detritus or organic debris Saprotrophs eat whatever is left ; absorbs nutrients. Group includes fungi, protozoa and bacteria.

Feeding Relationships Carnivores-eat meat Predators Hunt prey animals for food. Scavengers are a type of carnivore that eat dead animals, or carrion. Vultures, hyenas, crabs, deep sea fish-talk about distance from the sun and must eat the dead things that sink to the bottom, bottom feeders

Feeding Relationships Omnivores -eat both plants and animals Humans and bears are omnivores but a large and important subset of omnivores are the decomposers. They breakdown dead producers and release the energy back into circulation.

Feeding Relationships Herbivores -eat plants Humans and bears are omnivores but a large and important subset of omnivores are the decomposers. They breakdown dead producers and release the energy back into circulation.

Feeding Relationships Consumer- Decomposers Scavengers Detritivores Saprotrophs Humans and bears are omnivores but a large and important subset of omnivores are the decomposers. They breakdown dead producers and release the energy back into circulation.

Feeding Relationships Consumer-Scavangers eat soft tissue Humans and bears are omnivores but a large and important subset of omnivores are the decomposers. They breakdown dead producers and release the energy back into circulation.

Feeding Relationships Consumer-Detritivores eat detritus or organic debris Humans and bears are omnivores but a large and important subset of omnivores are the decomposers. They breakdown dead producers and release the energy back into circulation.

Feeding Relationships Consumer-Saprotrophs eat whatever is left ; Breakdown and absorb nutrients Group includes fungi, protozoa and bacteria. Humans and bears are omnivores but a large and important subset of omnivores are the decomposers. They breakdown dead producers and release the energy back into circulation.

Feeding Relationships CONSUMERS Primary (1st) consumers Eat plants Herbivores 2.Secondary (2nd), 3.tertiary (3rd) … consumers Prey animals Carnivores Herbivores are the 1st step up the food chain, they eat the producers

Homework Read page 10 -14, do all questions and graphic organizers along the way, continue to work on vocabulary.