May 18, 2018 · Animalia The kingdom Animalia, or Metazoa, includes all animals. Animals are multicellular, eukaryotic organisms, which are heterotrophic, meaning they obtain nutrition from …

May 9, 2018 · Animal Animals are creatures in the kingdom Animalia, one of the five major divisions of organisms (the others are: Monera or bacteria , Fungi , Protists or protozoans, and Plantae or …

May 8, 2018 · Metazoa (mĕt´əzō´ə), subkingdom of the animal kingdom comprising the multicellular animals in the traditional two-kingdom system of taxonomic classification, in which living organisms …

May 18, 2018 · Metazoan In the tenth edition of his book Systema Naturae (1758), Swedish botanist Carolus Linnaeus developed a biological classification system (now known as the Linnaean System) …

The eukaryotic Plantae, Fungi, and Animalia kingdoms contain mostly multicellular eukaryotes that differ in their structures, modes of nutrition, and life cycles (before reproduction).

May 18, 2018 · Invertebrates Invertebrates are animals without backbones. This simple definition hides the tremendous diversity found within this group which includes protozoa (single-celled animals), …

May 23, 2018 · Porifera (Spongiaria, sponges) A phylum of aquatic Animalia, most of which are marine. They lack definite tissues and organs, but have a filter-feeding system composed of flagellate cells, …

Jun 8, 2018 · Reptiles A reptile is an organism in the kingdom Animalia and the class Reptilia. (Kingdoms are the main divisions into which scientists classify all living things on Earth; kingdoms …

Animals in Mythology Theme Overview Since the beginning of human history, people have lived in close contact with animals—usually as hunters and farmers—and have developed myths and legends …

The Search for New Systems of Classification Overview As naturalists began to expand their reach and study more and more of the Earth, they began to find such a bounty of plants and animals that the …