Experience Elevante

Which lessons do you want to explore?

Pick one or more. The subject is Ecology (Biology 1).

Lesson recordings are from a Swedish classroom — answers reference the original Swedish transcript.

• Ecosystems — the basics

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  Biotic and abiotic factors, tolerance ranges, biotope and habitat.

• Food chains and food webs

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  Trophic levels, producers, consumers and decomposers — who eats whom.

• Energy flow and energy pyramids

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  How energy passes between trophic levels and why most of it is lost.

• Cycles in nature

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  The carbon and nitrogen cycles — how elements change form but never disappear.

• Biodiversity

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  What biodiversity is, why it matters, and what threatens it.

• Populations

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  How populations grow, are limited, and are regulated in an ecosystem.