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Arthropods, coelenterates.
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According to whether there is a vertebrate in the body, animals can be divided into two categories: vertebrates and invertebrates, the body of vertebrates has a vertebral column composed of vertebrae, such as fish, etc., and there is no vertebrate in the body of invertebrates, such as locusts
So the answer is: spine; Spineless.
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Categories: Education, Science, >> Science & Technology.
Problem description: There are rabbits, apples, five-leaf pines, snails, ferns (ferns), pythons, gourd moss (a type of moss), roundworms, seaweed, crucian carp, pigeons, frogs, locusts, jellyfish.
Category: Order, phylum, class, order, family, genus, species.
Analysis: Rabbit: Mammalian class.
Apple: woody plant.
Five-leaf pine: coniferous plant.
Snails: Crustaceans.
Fern: This plant is a fern.
Python: Reptile.
Cucurbita moss: Mosses.
Ascaris: phylum molluscs.
Crucian carp: phylum Vertebrates.
Domestic pigeons: Vertebrate phylum, birds.
Frogs: phylum Vertebrates, amphibians.
Locusts: insects.
Jellyfish: Coelenterate phylum.
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The classification of humans in biology is:
Domain: eukaryotic domain eukarya
Kingdom: Animalia
Phylum: Chordata of the phylum Chordata
Subphylum: Vertebrate subphylum vertebrata
Class: Mammalia
Subclass: Eutheria
Order: primate primates
Family: Anthropoidae hominidae
Genus: Homo homo
Species: Homo sapiens sapiens The species is generally the smallest taxonomic unit, and sometimes it is divided into "subspecies" under the species. There are several subspecies of man: yellow, black, brown, etc.
It can be seen that man is an ordinary creature, and he belongs to the same primate order as gibbons. It's just a discipline in its own right. Human beings are characterized by their ability to make and use tools, but they are not very different from some other primates.
People separate people and animals in their daily lives just for convenience. In addition to emphasizing that it is in the field of biology, it is still not strictly possible to say that humans and animals are two different concepts.
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Animalia Chordates Subphylum Vertebrate Subphylum Mammalia Subclass Euzoan Subclass Primate Anthropoids Homo Hominidae Hominaceae Hominus Species.
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Chordates, phylum Vertebrates, subphylum, Mammalia, Primates, Homo sapiens, Homo sapiens.
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Appearance of amniotic eggs.
Its appearance relieved the dependence on water in vertebrate ontogeny, making it possible for vertebrates to be completely terrestrial.
Reptiles were the first to have amniotic eggs, and the embryos of birds and mammals also had amniotic structures, which is the most basic and important difference between vertebrates and invertebrates, and is also the biggest feature of the phylum Vertebrates.
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Their common features are the presence of the notochord, dorsal neural canal and gill cleft throughout the course of their ontogeny or at a certain stage;
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Man is a mammal with thinking and feelings;
Humans belong taxonomically to: Animalia, Chordates, Mammalia, Primates, Hominidae, Homo sapiens, Homo sapiens
So the answer is: chordates; Suckle; primates; Person; Person; Homo sapiens
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