Food Webs & Trophic Levels
Not only do insects eat things themselves, but insects are by far the largest source of food for animals that eat meat or flesh, both on the land and in freshwater. One entomologist has estimated that the world population of insects at any one time is about 1,000,000,000,000,000,000 (one quintillion) individuals. Although insects are relatively […]
The Tree of Life: Part 2
Most of the organisms that scientists know exist fit in the second domain: Bacteria. The bacteria are a large group of unicellular microorganisms. Bacteria are ubiquitous in every habitat on Earth, growing in soil, acidic hot springs, radioactive waste, water, and deep in the Earth’s crust, as well as in organic matter and the live […]
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