Six kingdoms of life exist: archaebacteria, eubacteria, protists, fungi, plants and animals. In the past, the two bacterial kingdoms were placed into one kingdom, but the two types of bacteria were found to be so different that they warranted separate kingdoms.Continue Reading
When the first system of classification was devised by Carolus Linnaeus, organisms were placed into one of two kingdoms, plant or animal. As technology advanced and scientists increased their knowledge of different species, other kingdoms were added. For example, fungi were initially placed with plants but now belong to their own kingdom.
The kingdom with the most numerous species is the animal kingdom with one million species known. Viruses do not belong to any of the six kingdoms.Learn more about International Orgs
Protists belong to the Kingdom Protista, which consists mostly of unicellular organisms that don't fit into other kingdoms. Protists can either be heterotrophic or autotrophic. Most of them live in water, while some live in the human body or moist soil.Full Answer >
In biology, the variety of plants, animals and fungi that first colonize a barren habitat is known as a pioneer community. These organisms are the first in the order of biological succession for that habitat and are followed first by seral communities and then by climax communities. Generally, some drastic change to the habitat occurs, destroying the previous biological community, before the pioneer community organisms enter.Full Answer >
Good examples of biotic factors include plants, fungi and animals. Biotic factors are living things that affect or influence an ecosystem either positively or negatively.Full Answer >
Wikipedia states that there are hundreds of distinct steroids found in animals, fungi, plants, and elsewhere. All natural steroids are made in living cells, either from the sterol lanosterol in animals and fungi or from cycloartenol in plants.Full Answer >