Here's everything you need to know about food chains and food webs, and how ecologists use them to better understand the role of plants and animals in the ecosystem. Food Chain What is a food chain?

This film explains how plants and animals obtain energy from food, highlighting the energy needs of various creatures like geese, caterpillars, and squirrels. It demonstrates that while animals ...

In ecology, the food chain is a hierarchical classification of different predators and prey that usually reflects the ecological trophic levels. The food web, on the other hand, is a networked ...

Though they fit into one animal category, they do have reproductive traits that make it confusing. ... Here's where the top of the food chain ranks in the animal kingdom. Clare Mulroy.

PIGS, poultry and sheep as well as cattle could be carrying a hidden form of BSE, with humans theoretically in danger of contracting the disease from the apparently healthy animals, according to ...