Answer Aristotle divided animals into those with blood and those without. Carl Linnaeus created the first hierarchical biological classification for animals in 1758 with his Systema Naturae, which Jean-Baptiste Lamarck expanded into 14 phyla by 1809. In 1874, Ernst Haeckel divided the animal kingdom into the multicellular Metazoa (now synonymous with Animalia) and the Protozoa, single-celled organisms no longer considered animals. In modern times, the biological classification of animals relies on advanced techniques, such as molecular phylogenetics, which are effective at demonstrating the evolutionary relationships between animal taxa.
Animals have several characteristics that set them apart from other living things. Animals are eukaryotic and multicellular, unlike bacteria, which are prokaryotic, and unlike protists, which are eukaryotic but unicellular. Unlike plants and algae, which produce their own nutrients animals are heterotrophic, feeding on organic material and digesting it internally. With very few exceptions, animals breathe oxygen and respire aerobically. All animals are motile (able to spontaneously move their bodies) during at least part of their life cycle, but some animals, such as sponges, corals, mussels, and barnacles, later become sessile. The blastula is a stage in embryonic development that is unique to most animals, allowing cells to be differentiated into specialised tissues and organs.
Explanation:
Answer:
1). Synchronize - Desynchronize
2). Alert - Inattentive
3). Disharmonize - Harmonize
4). Acquit - criminate
5). Duality - individuality/non-duality
Explanation:
Antonyms are defined as the words that have the opposite meaning of another word or describes the other end of that word. For example, the word synchronize means 'to occur with coordinated timing' while the antonym of this word i.e. 'desynchronize' stands for 'loss or absence of that coordinated timing.' Similarly, the words 'alert,' 'disharmonize,' 'acquit,' and 'duality' have their antonyms 'inattentive,' 'harmonize,' 'criminate,' and 'individuality' which mean the exact opposite or other end of these words.
D) A particularly vicious stomach virus has run rampant through our second grade--teachers and students.
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Answer: For, there is nothing more important and more essential that the original self.
