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Khan Academy offers free educational resources on various topics, including biology, algebra, geometry, and more.
A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. Let's look at the parts of a typical food chain, starting from the bottom (the producers) and moving upward.
Energy flows and matter recycles in ecosystems, with the Sun as the primary energy source. Plants, as primary producers, convert sunlight into energy-storing biomolecules. Consumers, like animals, obtain energy by eating plants or other animals. Decomposers break down dead organisms, recycling matter and nutrients. Energy is conserved but often released as heat, while matter constantly cycles ...
Khan Academy
Let's explore trophic levels and how energy flows within them.
Let's explore trophic levels and how energy flows within them.
Math: Get ready courses; Get ready for 3rd grade; Get ready for 4th grade; Get ready for 5th grade; Get ready for 6th grade; Get ready for 7th grade; Get ready for 8th grade
Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level.
Apply your understanding of energy and matter in ecosystems with this set of free practice questions aligned to NGSS standards.