Animals are a major group of multi boothular, eukaryotic organisms of the personate politic Animalia or Metazoa. Their body plan eventually becomes frigid as they develop, although some undergo a run of metabolic process later on in their manners. roughly wildcats are motile, nub they can move spontaneously and independently. completely animals are in like manner heterotrophs, inwardness they mustiness ingest separate organisms or their products for sustenance. Most known animal phyla appeared in the fossil record as marine species during the Welsh explosion, about 542 million years ago. limit [hide] 1 Etymology 2 Characteristics 2.1 Structure 2.2 Reproduction and development 2.3 Food and energy sourcing 3 Origin and fossil record 4 Groups of animals 4.1 Porifera, Radiata and basal Bilateria 4.2 Deuterostomes 4.3 Ecdysozoa 4.4 Platyzoa 4.5 Lophotrochozoa 5 gravel organisms 6 History of classification 7 morality 8 See withal 9 References 9.1 B ibliography 10 external links Etymology The discussion animal comes from the Latin al-Quran animalis, meaning having breath. In everyday colloquial usage, the word a lot refers to non-human members of kingdom Animalia. Sometimes, only closer relatives of humans such as mammals and other vertebrates are meant in colloquial use.
 The biological comment of the word refers to all members of the kingdom Animalia, encompassing creatures as versatile as sponges, jellyfish, insects and humans. Characteristics Animals have several characteristics that set them away from other living things. Animals are eukaryotic and mostly multicellular, which separates them from bacteri a and most protists. They are heterotrophic,!  generally digesting food in an inner(a) chamber, which separates them from plants and algae. They are also distinguished from plants, algae, and fungi by wanting rigid cell walls. All animals are motile, if only at certain life stages. In most animals, embryos pass through a blastosphere stage, which is a characteristic...If you want to get a full essay, dictate it on our website: OrderEssay.net
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