The division of living organisms into Plantae and Animalia fails to recognise the major evolutionary discontinuity between prokaryotes and eukaryotes. In addition, fungi and "plant-animal" unicells lie uncomfortably in such a two-kingdom system. Systems have been proposed which separate prokaryotes ...
How many kingdoms are there in the domain bacteria? How many phyla are in the kingdom Animalia? How many species of Chlorophyta exist? How many species of amoeba are there? How many marine species of the phylum Arthropoda are there?
on the basis of shared physical characteristics. They place them in a hierarchy of groupings, beginning with the kingdom animalia and proceeding through phyla, classes, orders, families, genera and species. The animal kingdom, similar to the plant kingdom, comprises groups of phyla; a...
Phyla (or divisions in the plantae kingdom) Classes Orders Families Genera Species At each hierarchal level, from phyla to genera, the scientists group organisms with increasingly closely shared characteristics. At the final level, species, the organisms all have very similar characteristics. Conceptual...
How many cell layers do members of the phylum Platyhelminthes have? How many species of amphibians are there? How many phyla are in the kingdom Animalia? How many nostrils does a frog have? How many tentacles does a squid have? How many hearts does an earthworm have? What are examples of...
First, scientists have divided the kingdom of the animals into two main groups, or phyla: the invertebrates (those with no backbones) and vertebrates (those with backbones). Mule deer, with a brand new fawn. The mother mule deer shows the hardships of living in the desert. A vertebrate ...