*refer to chapter 16 in your textbook. learning goals: 1. i can differentiate between an autotroph...
DESCRIPTION
Energy Table: Type of OrganismEnergy SourceExample Autotroph/ProducerPhotosynthesisPhytoplankton Autotroph/ProducerChemosynthesisMussel in a hydrothermal vent Heterotroph/Consu mer Cellular RespirationGreat White SharkTRANSCRIPT
Lesson 6.3:Ecosystems
*Refer to Chapter 16 in your Textbook
Learning Goals: 1. I can differentiate between an autotroph and
heterotroph.2. I can label organisms in a food web as primary
producers and 1st, 2nd, and 3rd level consumers. 3. I can describe the energy flow through an
ecosystem.
Energy Table: Type of
OrganismEnergy Source
Example
Autotroph/Producer
Photosynthesis Phytoplankton
Autotroph/Producer
Chemosynthesis
Mussel in a hydrothermal
ventHeterotroph/
ConsumerCellular
Respiration Great White Shark
Autotrophs: Autotrophs are organisms capable of producing their own food, also known as producersThey can accomplish this two ways:1. Photosynthesis: Carbon dioxide + water + sunlight = oxygen + sugar
2. Chemosynthesis:Carbon dioxide + water + hydrogen sulfide =
oxygen + sugar + sulfur
Photosynthesis
Chemosynthesis
Autotrophs: The primary producers of the ocean are phytoplankton “plant plankton” (92% of all producers in the ocean)
Heterotrophs:Heterotrophs are organisms that must consume their energy, also known as a consumer All heterotrophs accomplish this one way:1. Cellular Respiration:
Converts food and oxygen into energy Oxygen + sugar = carbon dioxide + water +
energy (the opposite of photosynthesis)
Types of Consumers:1. Herbivore: eats plants (ex. Manatee)
2. Carnivore: eats meat (ex. Great White Shark)
3. Omnivore: eats plants & meat (ex. Sea Turtle)
4. Decomposer: break down dead/decaying material and release energy back into the ecosystem (ex. Marine Bacteria)
5. Detritivore (or Scavenger): feed on broken down dead/decaying material to consume energy for themselves (ex. Sea Star)
Food Chains:A food chain is a series of steps in which organisms transfer energy by eating and being eaten.
*An example from the Everglades is shown.
Food Webs:A food web is a network of feeding interactions through a series of connected food chains
Ecological Pyramids:Ecological Pyramids show the amount of energy contained within each trophic level within a food chain or web• Primary producers will always make up the 1st level• Various consumers will make up the next levels