Statements or conclusions about how matter and energy cycle through ecosystems, which are supported by scientific evidence.

The continuous movement and recycling of elements like carbon, oxygen, hydrogen, and nitrogen through living organisms and their environment.

The transfer of energy through an ecosystem, typically starting from the sun and moving through producers, consumers, and decomposers.

A community of living organisms interacting with each other and their environment, where matter and energy flow through various trophic levels.

A graphical representation showing the amount of biomass or energy at each trophic level in an ecosystem, illustrating how energy decreases as it moves up the levels.

A position in a food chain or food web, representing the flow of energy from producers to various levels of consumers.

The principle that matter and energy are neither created nor destroyed but are transformed and transferred within an ecosystem.

The basic units of matter, including elements like carbon, oxygen, hydrogen, and nitrogen, which cycle through ecosystems.

Combinations of atoms, such as water (H₂O) or carbon dioxide (CO₂), that play key roles in the cycling of matter in ecosystems.

The mathematical understanding of how quantities relate to each other in a consistent ratio, used to describe the conservation and flow of matter and energy.

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