The video is a lecture presentation on improving crop yields. It discusses various methods that farmers can use to increase the mass of useful product they get from a crop. The presentation starts by highlighting the importance of...

Curtis Marean received his Ph.D. from the University of California at Berkeley in 1990 and is now a member of the Institute of Human Origins and School of Human Evolution and Social Change at Arizona State University. In addition to...

Food Fighter is the inspirational story of one woman who abandoned capitalism in favour of social activism. Ronni Kahn founded OzHarvest to wage war on food waste, and to expose an inconvenient truth: that four million tonnes of...

Food Fighter is the inspirational story of one woman who abandoned capitalism in favour of social activism. Ronni Kahn founded OzHarvest to wage war on food waste, and to expose an inconvenient truth: that four million tonnes of...

This video is a lecture presentation on pyramids of biomass. The presenter explains the concept of biomass and trophic levels in a food chain. The video provides a graphical representation of the relative amounts of organic matter found...

The video discusses the important ecological concepts of trophic levels and biomass. The video provides an example of a food chain, from grass plants as producers to apex predators that have no predators of their own. The video explains...

This video is an educational program that teaches about producers in the ecosystem. The video also covers the process of photosynthesis that plants use to produce glucose, and it introduces the concept of a food chain to explain how...

The video is a lecture presentation on trophic levels in ecosystems. The presenter defines trophic levels as feeding levels in a community or ecosystem and explains how they can be used to organize feeding relationships. The concept of a...

Intensive farming is beneficial to humans as it increases the availability of food and therefore increases food security. It produces higher yields more efficiently so it can be sold at cheaper prices. However, it is controversial...

This video addresses the environmental and health impacts of consuming top predators from the ocean, like tuna, salmon, and shrimp, and emphasizes the importance of diversifying our seafood choices towards more sustainable options like...

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...

Distance learning video about ecology.

This is a lecture presentation on feeding relationships in ecosystems. The presenter discusses the interdependence of different organisms in a community and the consequences of a change in that community. Using a specific community as an...

Discover the incredible speed, strength, and feeding habits of this apex predator, as well as its unique anatomy and adaptations for survival. Learn about the life cycle and habitat of great white sharks, and the important role they play...

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.

This live-action video program is about the term food chain. The program is designed to reinforce and support a student's comprehension and retention of the term food chain through use of video footage, photographs, diagrams and...

This video explores the concepts of matter and energy in organisms and ecosystems. It explains how food provides energy for organisms, how plants use photosynthesis to convert sunlight into glucose, and how consumers obtain energy by...

Learn all about ecological pyramids and how to show quantitative data about relationships between species.

This live-action video program is about the word consumer. The program is designed to reinforce and support a student's comprehension and retention of the word consumer through use of video footage, photographs, diagrams and colorful,...

A pest is an organism that eats or damages crop plants that are grown in agriculture. Pests can be controlled using pesticides or by introducing other species, also known as biological control. Pesticides are natural or synthetic...

Here's an exciting way to learn important facts and get ready for a life science test! In this episode we'll be looking at ecosystems.

Here's an exciting way to learn important facts and get ready for a life science test! Marko the Pencil and his friend Bailey take learners on a fascinating journey to Marko's Super Science Station where it's easy and fun to grasp...

It is fascinating to explore the energy relationships between living things. This exciting video investigates the process of living things producing energy, consuming it, and breaking it down. Food chains and food webs visually...

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,...