Unit 8 Section 1: Intro to Ecology & Energy Flow

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What is a population in ecology?

Back

A population is a group of organisms of the same species living in a specific area.

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What is a community in ecology?

Back

A community is a group of different populations that live together in a defined area.

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What do the arrows in a food web represent?

Back

The arrows in a food web represent the flow of energy from one organism to another.

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Who is considered a primary consumer in an ecosystem?

Back

A primary consumer is an organism that eats producers, such as plants. For example, a rabbit is a primary consumer.

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What is a trophic cascade?

Back

A trophic cascade is an ecological phenomenon triggered by the addition or removal of top predators, which causes changes in the population sizes of species at different trophic levels.

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What happens to biodiversity when a top predator is removed from an ecosystem?

Back

The removal of a top predator can lead to a trophic cascade, affecting the entire food web and potentially decreasing biodiversity.

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Define an ecosystem.

Back

An ecosystem is a community of living organisms interacting with their physical environment.

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What is the role of producers in an ecosystem?

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Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food web.

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What is the difference between a food chain and a food web?

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A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

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What is an example of a secondary consumer?

Back

A secondary consumer is an organism that eats primary consumers. For example, a fox that eats rabbits.