All organisms in an ecosystem depend on each other. Food chains show the flow of energy from one organism to another. Food chains show the feeding relationships between organisms. Food webs show ...

All organisms in an ecosystem depend upon each other. If the population of one organism rises or falls, then this can affect the rest of the ecosystem. A simple food chain is: grass → rabbit → fox ...

While exploring the ocean in a deep-sea submersible, scientists say they discovered a flourishing ecosystem capable of ...

These organisms don’t rely on photosynthesis or wait for scraps from the upper ocean: they’ve learned to feed on the chemistry of the planet. The main creatures in this ecosystem are tubeworms and ...

In deep-water aquatic ecosystems, with their low standing biomass, rapid turnover of organisms, and high rate of harvest, the grazing food chain may be dominant.

While exploring the ocean in a deep-sea submersible, scientists say they discovered a flourishing ecosystem capable of sustaining life without sunlight.