Autocracy is a system of government in which absolute power is held by the ruler, known as an autocrat. It includes most forms of monarchy and dictatorship, while it is contrasted with democracy and feudalism. Various definitions of...

This video explains how ecologists use diagrams to illustrate the feeding relationships between organisms in an ecosystem. It introduces the concept of a food chain and highlights the complexity of natural ecosystems by introducing the...

In this video Paul Andersen explains how ecosystems function. He begins with a description of how life on the planet is ordered from large to small in biomes, ecosystems, communities, population, and individuals. He describes the major...

A food chain is a single path, which help us to work out who eats whom in a habitat, in order to get the energy and materials required for nutrition. Typically food chains involve around four steps. It is unusual for them to be longer...

In this video, we are going to look at a food chain and the different roles within that. So we will discover exactly what each of these words mean: food web, food chain, trophic level, producer, consumer, herbivore, carnivore, omnivore,...

Hank brings us to the next level of ecological study with ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem (a collection of living and nonliving things interacting in...

How Does The Periodic Table Work | Properties of Matter | Chemistry | FuseSchool Learn the basics about the periodic table, and how the elements are organised within it in this video. The periodic table consists of 7 rows called Periods,...

Scientists traveled to a town near the top of the world to study a creature at the bottom of the marine food chain--microscopic sea ice algae. Welcome to Barrow, Alaska, where a team of marine ecologists gears up to hit the sea...

Distance learning video about ecology.

- Help support more content like this! Food chains help us understand the connection between living things. What eats what? Where does the energy that life...

How do we find out the position that an organism occupies in a food chain? The different feeding positions in a food chain or web are called trophic levels. All food chains and webs have at least two trophic levels, starting at level one...

Try Dashlane for freeref='http://bit.ly/minutedash.' target='_blank' rel='nofollow'>free Use promo code "minuteearth" for 10% off Dashlane Premium. To see sohereyrics, click "CC" on the video or, for an annotated version, click