Ecology Energy Flow

The trophic pyramid is a triangular shape because

• 90% of energy is lost to heat, movement, and survival, and only 10% of energy goes to the next level

• People see the top of the pyramid so it is important to know the keystone species.

• 10% of energy is lost to heat, movement, and survival, and only 90% of energy goes to the next level

• the top of the pyramid is the pinnacle organism of an ecosystem

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Producers obtain their energy by

• the process of hunting for prey

• the process of eating plants

• the process of photosynthesis to make their own food from sunlight

• the process of breaking down once living things

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The carnivore level in this diagram are also known as

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

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The herbivore level in this diagram are also known as

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

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The food web shows

• many possible interactions and feeding relationships beween the organsims in the ecosystem

• a nice picture of what lives in the ecosystem

• the symbiotic relationships

• the keystone species

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This trophic pyramid most shows

• how matter cycles in this ecosystem

• how energy flows through this ecosystem

• how energy cycles in this ecosystem

• all the living things that live in this ecosystem

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Which level would have the most biomass?

• Producers

• Primary consumers - herbivores

• Secondary consumers- carnivores

• Quaternary consumers- Apex Predators

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Which level would have the least biomass?

• Producers

• Primary consumers - herbivores

• Secondary consumers- carnivores

• Quaternary consumers- Apex Predators

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What is the difference between a Trophic Pyramid and Food Web?

• A Trophic Pyramid shows the energy & mass available, but the food web shows directly who eats who.

• A food web shows the mass & energy available, but the Trophic Pyramid shows directly who eats who.

• A food web is so pretty to look at.

• A trophic pyramid is so beautiful.

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Trophic Levels show the

• what grade each organism has achieved in the ecosystem

• position that an organism occupies in a food chain - what it eats, and what eats it

• part of the triangle the organism likes the most

• elevation the organism likes to live in

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