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Bell Ringer:. Define and give examples of the following: Autotroph Heterotroph Herbivore Omnivore Carnivore Decomposer. Feeding Relationships & Energy Flow. Feeding Relationships. There are 3 main types of feeding relationships 1. Producer - Consumer 2. Predator - Prey

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Bell ringer

Bell Ringer:

Define and give examples of the following:

Autotroph

Heterotroph

Herbivore

Omnivore

Carnivore

Decomposer



Feeding relationships
Feeding Relationships

  • There are 3 main types of feeding relationships

    1. Producer - Consumer

    2. Predator - Prey

    3. Parasite - Host


Feeding relationships1
Feeding Relationships

Producer- all autotrophs (plants),they trap energy from the sun

  • Bottom of the food chain


Feeding relationships2
Feeding Relationships

Consumer- all heterotrophs: they ingest food containing the sun’s energy

  • Herbivores

  • Carnivores

  • Omnivores

  • Decomposers


Feeding relationships3
Feeding Relationships

CONSUMERS

  • Primary consumers

    • Eat plants

    • Herbivores

  • Secondary, tertiary … consumers

    • Prey animals

    • Carnivores or Omnivores


  • Feeding relationships4
    Feeding Relationships

    Consumer-Carnivores-eat meat

    • Predators

      • Hunt prey

        animals for food.


    Feeding relationships5
    Feeding Relationships

    Consumer- Carnivores- eat meat

    • Scavengers

      • Feed on carrion,

        dead animals


    Feeding relationships6
    Feeding Relationships

    Consumer- Omnivores -eat both plants

    and animals


    Feeding relationships7
    Feeding Relationships

    Consumer- Decomposers

    • Breakdown the complex compounds of dead and decaying plants and animals into simpler molecules that can be absorbed


    Label your organism producer herbivore carnivore omnivore decomposer or scavenger
    Label Your Organism:Producer, Herbivore, Carnivore, Omnivore, Decomposer, or Scavenger


    Nitrosomonas is a genus of bacteria and a decomposer in the coral reef.

    Where would it go in our food web?


    Bellringer
    Bellringer

    • Draw a food chain with at least 5 organisms

    • Must include:

    • 1 producer

    • 4 consumers (one must be a decomposer)


    Energy flow
    Energy Flow

    Food chain- simple model that shows how energy moves through an ecosystem in ONE direction

    The ARROW shows where the ENERGY goes!


    Trophic levels
    Trophic Levels

    • Each link in a food chain is known as a trophic level.

    • Trophic levels represent a feeding step in the transfer of energy in an ecosystem.


    Energy flow1
    Energy Flow

    Food web- shows all possible feeding relationships in a community at each trophic level

    • Represents a network of interconnected food chains

    • Remember: ARROW = ENERGY


    Trophic levels1
    Trophic Levels

    • Only 10% of the energy is able to be stored in the organisms tissues and transferredto the next trophic level.

    • The rest of the energy was used by the organism for life processes or given off as heat.


    Food chain Food web

    (just 1 path of energy) (all possible energy paths)


    Ecological pyramids
    Ecological Pyramids

    3 Types:

    • Biomass Pyramid

      • Amount of living tissue in an ecosystem

    • Energy Pyramid

      • Flow of energy in an ecosystem

    • Pyramid of Numbers

      • Number of organisms in each trophic level

        These 3 types may be combined!


    Biomass
    Biomass

    Biomass- the amount of organic matter comprising a group of organisms in a habitat.

    • As you move up a food chain, both available energy AND biomassdecrease.

    • WHY???


    Biomass Pyramid

    Note: Kilogram (Kg)

    is a unit of mass.


    Energy pyramid
    Energy Pyramid

    E

    N

    E

    R

    G

    Y

    0.1%

    Tertiary consumers- top carnivores

    Heat

    Heat

    Heat

    1%

    Secondary consumers-small carnivores

    10%

    Primary consumers- Herbivores

    100%

    Producers- Autotrophs


    Energy Pyramid

    Note:

    Joules (J) & Kilocalories (C) are units of energy



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