Bozeman Science
Thinking in Energy - Level 6 - Conservation of Energy
In this video Paul Andersen shows conceptual thinking in a mini-lesson on the conservation of energy. Two examples are included in the video and two additional examples are included in the linked thinking slides. TERMS Energy - the...
Bozeman Science
Energy Flow in Ecosystems
In this video Paul Andersen explains how energy flows in ecosystems. Energy enters via producers through photosynthesis or chemosynthesis. Producers and consumers release the energy from food through cellular respiration. An explanation...
Professor Dave Explains
Food Webs and Trophic Cascades
Now that we know about nutrient cycling, we are ready to look at food webs as a whole. These represent feeding relationships within a community.These relationships designate certain trophic levels, so let's learn about what these mean...
Curated Video
GCSE Biology - Trophic Levels - Producers, Consumers, Herbivores & Carnivores #86
This video covers: - The idea that trophic levels are just the different levels of a food chain - Trophic level 1 are called the producers - Trophic level 2 are primary consumers, trophic level 3 are called the secondary consumers and so...
Curated Video
GCSE Biology - Pyramids of Biomass #87
This video covers: - The idea that biomass is just the mass of living organisms - Pyramids of biomass show the amount of biomass at each trophic level of a food chain - Why the amount of biomass decreases as you go up the food chain -...
msvgo
Energy Flow in Ecosystem
It explains the unidirectional flow of energy through different trophic levels; energy flow maintained by laws of thermodynamics, food web, food chain and the ten percent law.
Amoeba Sisters
Biomagnification and the Trouble with Toxins
Our relationship with toxins is, well, a little toxic. Explore how harmful substances work their way throughout the environment with a video from an expansive biology playlist. Topics include DDT and mercury, trophic levels, and water...
Teacher's Pet
Energy Transfer in Trophic Levels
Learn more about food chains, the food web, and the concepts relating to them. It focuses on consumers, producers, decomposers, energy transfer, and energy loss across trophic levels.
Crash Course
Ecosystem Ecology: Links in the Chain
A video starts by defining an ecosystem. It expands on the concept by covering trophic structure, primary producers, primary consumers, secondary consumers, tertiary consumers, detrivores, and bioaccumulation.
Curated OER
Tell Me Why - Environment and Ecosystems
All of the species in our world are part of what is called a trophic level. Basically, it determines an organism's position in the food chain. Introduce your learners to the basic levels and have them identify more organisms that could...
Sophia Learning
Sophia: Energy Pyramids: Lesson 4
This lesson will introduce energy pyramids, and show how energy moves from one trophic level to the next. It is 4 of 4 in the series titled "Energy Pyramids." [5:04]