Marine revision

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What is a producer?

Back

a producer is... an organism that can make its own food, through photosynthesis.

He is the first level in the food chain and gets consumed by a PRIMARY consumer.

e.g. (seagrass, algae, phytoplankton, seaweed, kelp)

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What is a primary consumer?

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a primary consumer is... a herbivore animal, they consume the producers.

e.g. (zooplankton, crustaceans, turtles, small fish)

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What is a secondary consumer?

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a secondary consumer is.. an animal that eats the primary consumers, they are carnivores

e.g. (large fish, squids)

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What is a tertiary/quaternary consumer?

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a tertiary consumer is... the top animal of the trophic level considered the apex predator

e.g. (shark, sealions, orcas)

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What is a decomposer?

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a decomposer is... an organism that breaks down dead plant or animal matter, releasing nutrients back into the ecosystem.

e.g. (bacteria, fungus, or invertebrate)

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10% Rule is...

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10% Rule is... Biomass is... when an organism consumes another it obtains 10% of its energy.

• -primary consumers obtain the greatest amount of energy.

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What is Biomass?

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Biomass is... the total mass of a living organisms in a specific area or ecosystem at a given time.

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What is a food chain?

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Front

What is a food web?

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What does the pathways indicate?

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a food web is.. a complex network of interconnected food chains, illustrating the various feeding relationships in an ecosystem.

A food web indicates multiple interactions and energy flow pathways.

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How would a food web be impacted if a specie/s is removed?

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removing a species can disrupt the balance of energy flow, alter population dynamics, and potentially lead to the decline or overgrowth of other species, destabilizing the entire food web.