It consists of a lower House of Representatives with 465 seats, elected by popular vote every four years or when dissolved, and an upper Senate with 248 seats, whose popularly elected members serve six-year terms. More recent major quakes are the 1995 Great Hanshin earthquake and the 2011 Tōhoku earthquake, which triggered a large tsunami. From the 12th century, actual power was held by military aristocrats known as shōgun and feudal lords called daimyō, enforced by warrior nobility named samurai.
- From the 12th century, actual power was held by military aristocrats known as shōgun and feudal lords called daimyō, enforced by warrior nobility named samurai.
- The country’s manufacturing output is the third highest in the world as of 2023update.
- The Japanese language is Japan’s de facto national language and the primary written and spoken language of most people in the country.
- The military is governed by the Ministry of Defense, and primarily consists of the Japan Ground Self-Defense Force, the Japan Maritime Self-Defense Force, and the Japan Air Self-Defense Force.
- Adopting Western political, judicial, and military institutions, the Cabinet organized the Privy Council, introduced the Meiji Constitution (November 29, 1890), and assembled the Imperial Diet.
- The mountains of the Chūgoku and Shikoku regions shelter the Seto Inland Sea from seasonal winds, bringing mild weather year-round.
- Selective pressures imposed on one another lead to an evolutionary arms race between predator and prey, resulting in various antagonistic/competitive coevolutions.
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. The animal kingdom is divided into five major clades, namely Porifera, Ctenophora, Placozoa, Cnidaria and Bilateria. Animals consume organic material, breathe oxygen, have muscle cells, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development.
In the classical era, Aristotle divided animals,d based on his own observations, into those with blood (roughly, the vertebrates) and those without. The chordates are dominated by the vertebrates (animals with backbones), which consist of fishes, amphibians, reptiles, birds, and mammals. Most protostomes have schizocoelous development, where cells simply fill in the interior of the gastrula to form the mesoderm. Most appear to belong to two major lineages, the protostomes and the deuterostomes.
Spinner Shark
- The country has therefore aimed to diversify its sources and maintain high levels of energy efficiency.
- After being defeated in the Pacific War and suffering the U.S. atomic bombings of Hiroshima and Nagasaki, Japan surrendered in 1945 and came under Allied occupation until 1952.
- Extant phyla in these rocks include molluscs, brachiopods, onychophorans, tardigrades, arthropods, echinoderms and hemichordates, along with numerous now-extinct forms such as the predatory Anomalocaris.
- 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.
- Animals may be listed or indexed by many criteria, including taxonomy, status as endangered species, their geographical location, and their portrayal and/or naming in human culture.
- Some benthic animals living close to hydrothermal vents and cold seeps on the dark sea floor consume organic matter produced through chemosynthesis (via oxidising inorganic compounds such as hydrogen sulfide) by archaea and bacteria.
- Japan ranks 20th in the 2018 Environmental Performance Index, which measures a country’s commitment to environmental sustainability.
Animals, plants, fungi, and some other living things have complex cells, so they are grouped together as eukaryotes. Animals (or Metazoa) are living creatures with many cells that make up the kingdom Animalia. Animals may be listed or indexed by many criteria, including taxonomy, status as endangered species, their geographical location, and their portrayal and/or naming in human culture.
Japan is a unitary state and constitutional monarchy in which the power of the emperor (Tennō) is limited to a ceremonial role. As the host and signatory of the 1997 Kyoto Protocol, Japan is under treaty obligation to reduce its carbon dioxide emissions and to take other steps to curb climate change. Japan ranks 20th in the 2018 Environmental Performance Index, which measures a country’s commitment to environmental sustainability. The highest temperature ever measured in Japan, 41.8 °C (107.2 °F), was recorded on August 5, 2025. The main rainy season begins in early May in Okinawa, and the rain front gradually moves north.
For sexual reproduction, most sponges are hermaphrodites, they produce both egg and sperm cells. In addition to sponges, Placozoa has no symmetry and was often considered a “missing link” between protists and multicellular animals. Extant phyla in these rocks include molluscs, brachiopods, onychophorans, tardigrades, arthropods, echinoderms and hemichordates, along with numerous now-extinct forms such as the predatory Anomalocaris.
Life styles
Japanese animated films and television series, known as anime, were largely influenced by Japanese manga and have become highly popular globally. Japanese comics, known as manga, developed in the mid-20th century and have become popular worldwide. Many Japanese media franchises have gained considerable global popularity and are among the world’s highest-grossing media franchises.
Red-Billed Quelea Bird
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Numbers and habitats of major phyla
Japan is an ethnically and culturally homogeneous society, with the Japanese people forming 97.4% of the country’s population. On April 1, 2019, Japan enacted its revised immigration law, protecting the rights of foreign workers to help reduce labor shortages in certain sectors. The country has therefore aimed to diversify its sources and maintain high levels of energy efficiency. The high-speed Shinkansen (bullet trains) that connect major cities are known for their safety and punctuality. The explorer entered a lunar orbit on October 4, 2007, and was deliberately crashed into the Moon on June 11, 2009. Japan’s plans in space exploration include building a Moon base and landing astronauts by 2030.
The Ryukyu Islands, which include Okinawa, are a chain to the south of Kyushu. The country’s five main islands, from north to south, are Hokkaido, Honshu, Shikoku, Kyushu and Okinawa. On March 11, 2011, Japan suffered the Tōhoku earthquake—the largest by magnitude in its recorded history—which, along with the ensuing tsunami, triggered the Fukushima nuclear accident. The war cost Japan millions of lives and many of its conquered territories, including de jure parts of Japan such as Korea, Taiwan, Karafuto, and the Kurils.
The scarab beetle was sacred in ancient Egypt, and the cow is sacred in Hinduism. People have used hunting dogs to help chase down and retrieve animals, and birds of prey to catch birds and mammals, while tethered cormorants have been used to catch fish. The protostomes include the Ecdysozoa, named after their shared trait of ecdysis, growth by moulting, Among the largest ecdysozoan phyla are the arthropods and the nematodes. The remaining animals, the great majority—comprising some 29 phyla and over a million species—form the Bilateria clade, which have a bilaterally symmetric body plan.
