Nutritional Relationships

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Presentation transcript:

Nutritional Relationships Autotrophs Heterotrophs Saprophytes

Nutritional Relationships Nutritional relationships involve the transfer of nutrients from one organism to another within the ecosystem. Autotrophs are organisms that can use energy from the environment to synthesize their own food from inorganic compounds. Most autotrophs are photosynthetic ,using energy from sunlight and carbon dioxide and water from the environment.

Autotrophs Algae Plants

Nutritional Relationships Heterotrophs cannot synthesize their own food and must obtain nutrients from other organisms. Depending on their source of food , heterotrophs are classified as herbivores , carnivores, omnivores and saprophytes.

Herbivores Examples:

Carnivores Examples:

Omnivores Examples:

Nutritional Relationships

Saprophytes Examples: Fungi Soil bacteria

Identify each organism Identify each organism.Write the name inside thebox(autotrophs,heterotrophs)

Homework: Answer the following questions: 1.The organisms that carry out photosynthesis are the: a.herbivores b.carnivores c.decomposers d.producers 2.Fly larvae consume the body of a dead rabbit. In this process ,they function as: a.parasite b.saprophyte c.primary consumer d.parasites 3.Which organisms are classified as herbivores? a.algae,tadpole,raccoon b.worm,snake,bacteria c.tadpole,worm,grasshopper c.grasshopper,bacteria,frog