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A magical diagram, composed of two circles, a pentagram, and three heptagons, and is labeled with the name of God and his angels. Squared circle: Alchemy: A symbol of the Philosopher's stone. Depicted on the left image is Michael Maier's Emblem XXI from Atalanta Fugiens. Sriramachakra: Tamil mysticism: A mystic diagram used for astrology. Sri ...
Schistosoma haematobium ( urinary blood fluke) is a species of digenetic trematode, belonging to a group (genus) of blood flukes ( Schistosoma ). It is found in Africa and the Middle East. It is the major agent of schistosomiasis, the most prevalent parasitic infection in humans. [ 1] It is the only blood fluke that infects the urinary tract ...
The life cycle of a typical trematode begins with an egg. Some trematode eggs hatch directly in the environment (water), while others are eaten and hatched within a host, typically a mollusc. The hatchling is called a miracidium, a free-swimming, ciliated larva. Miracidia will then grow and develop within the intermediate host into a sac-like ...
Infertile egg. Ascaris lumbricoides is characterized by its great size. Males are 2–4 mm (0.08–0.2 in) in diameter and 15–31 cm (5.9–12 in) long. The male's posterior end is curved ventrally and has a bluntly pointed tail. Females are 3–6 mm (0.1–0.2 in) wide and 20–49 cm (7.9–19 in) long. The vulva is located in the anterior ...
Haemonchus placei Place, 1893[ 1] (closely related species) Haemonchus contortus, also known as the barber's pole worm, is a very common parasite and one of the most pathogenic nematodes of ruminants. Adult worms attach to abomasal mucosa and feed on the blood. This parasite is responsible for anemia, oedema, and death of infected sheep and ...
Schistosoma mansoni is a water-borne parasite of humans, and belongs to the group of blood flukes ( Schistosoma ). The adult lives in the blood vessels ( mesenteric veins) near the human intestine. It causes intestinal schistosomiasis (similar to S. japonicum, S. mekongi, S. guineensis, and S. intercalatum ). Clinical symptoms are caused by the ...
The Moon goes around the Earth. The Earth goes around the Sun. The Sun, along with its many stellar brethren, goes around the black hole at the center of our Milky Way galaxy.
Stellar evolution is the process by which a star changes over the course of its lifetime and how it can lead to the creation of a new star. Depending on the mass of the star, its lifetime can range from a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the current age of the ...