Insect morphology is the study and description of the physical form of insects.The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. The ink gland and its associated ink sac empties into the rectum close to the anus, allowing the squid to rapidly discharge black ink into the mantle cavity and surrounding water. Photo source: wiki Insect physiology includes the physiology and biochemistry of insect organ systems.. : Opiliones 6,600 4 A copulatory organ on the tail collects the sperm and transfers it to the partner's seminal receptacle through the female gonopore. For most populations the median age is five to eight years and the maximum age is fourteen to eighteen years. (iv) Gill and osphradium on the right side of the body. (ii) Mantle present but without mantle cavity. Examples: They have a gonopore on the ventral cephalothorax, and the copulation is direct as male Opiliones have a penis, unlike other arachnids. Primarily nocturnal, scorpions often Urchins typically range in size from 3 to 10 cm (1 to 4 in), although the largest species can reach up to 36 cm (14 in). (v) The male gonopore is situated at the base of the right rhinophore. [pages needed] All others are called secondary sex organs, divided between the external sex organsthe All planaria are hermaphrodites, meaning individual animals have both female and male reproductive parts at the same time. The ink is a suspension of melanin particles and quickly disperses to form a dark cloud that Graptolites are a group of colonial animals, members of the subclass Graptolithina within the class Pterobranchia.These filter-feeding organisms are known chiefly from fossils found from the Middle Cambrian (Miaolingian, Wuliuan) through the Lower Carboniferous (Mississippian). scorpion, (order Scorpiones or Scorpionida), any of approximately 1,500 elongated arachnid species characterized by a segmented curved tail tipped with a venomous stinger at the rear of the body and a pair of grasping pincers at the front. The 7th sternum is boat-shaped in females, and it forms a brood or genital pouch with the 8th and 9th sterna. The body of a rotifer is divided into a head, trunk, and foot, and is typically somewhat cylindrical. Ticks (order Ixodida) are parasitic arachnids that are part of the mite superorder Parasitiformes.Adult ticks are approximately 3 to 5 mm in length depending on age, sex, species, and "fullness". The anatomy of spiders includes many characteristics shared with other arachnids.These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed.. Spiders also have several adaptations that distinguish them from The name urchin is an old word for hedgehog, which sea urchins resemble; they have archaically been called sea Examples: Sea hares, Aplysia, Petalifera, Notarchus, Bursatella, Akera. Three physical features separate insects from other arthropods: they have a body divided into three regions (called tagmata) (head, thorax, and abdomen), have three pairs The front half of the pouch contains the female gonopore, spermathecal pores, and collateral glands. While many of the species in the group share a number of morphological characteristics, such as a flattened body and being small in size, Monogeneans are divided into two major groups which include monopisthocotyleans, A sex organ (or reproductive organ) is any part of an animal or plant that is involved in sexual reproduction.The reproductive organs together constitute the reproductive system.In animals, the testis in the male, and the ovary in the female, are called the primary sex organs. Both male and female cockroaches have ten segments in their abdomen. There is a well-developed cuticle, which may be thick and rigid, giving the animal a box-like shape, or flexible, giving the animal a worm-like shape; such rotifers are respectively called loricate and illoricate. Squid distract attacking predators by ejecting a cloud of ink, giving themselves an opportunity to escape. Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. The ink is a suspension of melanin particles and quickly disperses to form a dark cloud that For most populations the median age is five to eight years and the maximum age is fourteen to eighteen years. Graptolites are a group of colonial animals, members of the subclass Graptolithina within the class Pterobranchia.These filter-feeding organisms are known chiefly from fossils found from the Middle Cambrian (Miaolingian, Wuliuan) through the Lower Carboniferous (Mississippian). The name urchin is an old word for hedgehog, which sea urchins resemble; they have archaically been called sea The cirrus can be everted through the gonopore during copulation. Typical body length does not exceed 7 mm (0.28 in), and some species are smaller than 1 mm, although the largest known species, Trogulus torosus ( Trogulidae ), grows as long as 22 mm (0. [pages needed] All others are called secondary sex organs, divided between the external sex organsthe The sperm is sometimes packaged in spermatophores and is released through male gonopores that open, often temporarily, on the underside of the animal, roughly two-thirds of the way along the body. A copulatory organ on the tail collects the sperm and transfers it to the partner's seminal receptacle through the female gonopore. The cirrus can be everted through the gonopore during copulation. The genital atrium is a common chamber for male and female genital apertures, it opens externally by a gonopore lying ventrally in front of the acetabulum. The ink is a suspension of melanin particles and quickly disperses to form a dark cloud that scorpion, (order Scorpiones or Scorpionida), any of approximately 1,500 elongated arachnid species characterized by a segmented curved tail tipped with a venomous stinger at the rear of the body and a pair of grasping pincers at the front. Squid distract attacking predators by ejecting a cloud of ink, giving themselves an opportunity to escape. They serve as openings for the scorpion's respiratory organs, known as book lungs. They have a rigid, usually spherical body bearing moveable spines, which gives the class the name Echinoidea (from the Greek ekhinos 'spine'). The insect is made up of three main body regions (tagmata), the head, thorax and abdomen. Although scorpions are most common and diverse in deserts, they also live in many other habitats. Rotifers have bilateral symmetry and a variety of different shapes. Both parts share a single opening called gonopore, which is located on the ventral side of the posterior half of the body. The age of American paddlefish is best Notaspidea: (i) Shell may or may not be present. Three physical features separate insects from other arthropods: they have a body divided into three regions (called tagmata) (head, thorax, and abdomen), have three pairs The next four somites, 3 to 6, all bear pairs of spiracles. : Solifugae 1,100 [In this image] Planarian reproductive system. The front half of the pouch contains the female gonopore, spermathecal pores, and collateral glands. A possible early graptolite, Chaunograptus, is known from the Middle Cambrian. Although scorpions are most common and diverse in deserts, they also live in many other habitats. The timing of the origin of ticks is uncertain, though the Graptolites are a group of colonial animals, members of the subclass Graptolithina within the class Pterobranchia.These filter-feeding organisms are known chiefly from fossils found from the Middle Cambrian (Miaolingian, Wuliuan) through the Lower Carboniferous (Mississippian). All planaria are hermaphrodites, meaning individual animals have both female and male reproductive parts at the same time. (ii) Mantle present but without mantle cavity. The female has an elongated ovary above the point where the intestine caeca rejoin, from the ovary an oviduct passes in front. A sex organ (or reproductive organ) is any part of an animal or plant that is involved in sexual reproduction.The reproductive organs together constitute the reproductive system.In animals, the testis in the male, and the ovary in the female, are called the primary sex organs. The ink gland and its associated ink sac empties into the rectum close to the anus, allowing the squid to rapidly discharge black ink into the mantle cavity and surrounding water. Although diverse, insects are quite similar in overall design, internally and externally. American paddlefish are among the largest and longest-lived freshwater fishes in North America. Although diverse, insects are quite similar in overall design, internally and externally. Sternite 2 forms the basal plate bearing the pectines, which function as sensory organs. The cirrus or penis, seminal vesicle and prostatic glands are surrounded in a common cirrus sheath or cirrus sac. (iii) Gill bipectinate type. The next four somites, 3 to 6, all bear pairs of spiracles. Typical body length does not exceed 7 mm (0.28 in), and some species are smaller than 1 mm, although the largest known species, Trogulus torosus ( Trogulidae ), grows as long as 22 mm (0. (ii) Mantle present but without mantle cavity. Photo source: wiki The male has four testes; a short vas deferens arises from the testes and joins a seminal vesicle which enters a penis, the opens by a gonopore below the acetabulum. The female has an elongated ovary above the point where the intestine caeca rejoin, from the ovary an oviduct passes in front. The cirrus or penis, seminal vesicle and prostatic glands are surrounded in a common cirrus sheath or cirrus sac. The insect is made up of three main body regions (tagmata), the head, thorax and abdomen. Sternite 2 forms the basal plate bearing the pectines, which function as sensory organs. Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. Insect morphology is the study and description of the physical form of insects.The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. : Opiliones 6,600 4 They serve as openings for the scorpion's respiratory organs, known as book lungs. The age of American paddlefish is best The anatomy of spiders includes many characteristics shared with other arachnids.These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed.. Spiders also have several adaptations that distinguish them from Order 5. : Solifugae 1,100 Typical body length does not exceed 7 mm (0.28 in), and some species are smaller than 1 mm, although the largest known species, Trogulus torosus ( Trogulidae ), grows as long as 22 mm (0. Insect physiology includes the physiology and biochemistry of insect organ systems.. All planaria are hermaphrodites, meaning individual animals have both female and male reproductive parts at the same time. The timing of the origin of ticks is uncertain, though the An octopus (PL: octopuses,octopi, or octopodes, see below for variants) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ k t p d /, ok-TOP--d).The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a The genital atrium is a common chamber for male and female genital apertures, it opens externally by a gonopore lying ventrally in front of the acetabulum. While many of the species in the group share a number of morphological characteristics, such as a flattened body and being small in size, Monogeneans are divided into two major groups which include monopisthocotyleans, The head comprises six fused segments with compound eyes, ocelli, antennae and mouthparts, which differ according The timing of the origin of ticks is uncertain, though the Ticks (order Ixodida) are parasitic arachnids that are part of the mite superorder Parasitiformes.Adult ticks are approximately 3 to 5 mm in length depending on age, sex, species, and "fullness". (iv) Gill and osphradium on the right side of the body. Order 5. The 7th sternum is boat-shaped in females, and it forms a brood or genital pouch with the 8th and 9th sterna. Ticks (order Ixodida) are parasitic arachnids that are part of the mite superorder Parasitiformes.Adult ticks are approximately 3 to 5 mm in length depending on age, sex, species, and "fullness". Both male and female cockroaches have ten segments in their abdomen. The anatomy of spiders includes many characteristics shared with other arachnids.These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed.. Spiders also have several adaptations that distinguish them from Rotifers have bilateral symmetry and a variety of different shapes. While many of the species in the group share a number of morphological characteristics, such as a flattened body and being small in size, Monogeneans are divided into two major groups which include monopisthocotyleans, [pages needed] All others are called secondary sex organs, divided between the external sex organsthe They have a rigid, usually spherical body bearing moveable spines, which gives the class the name Echinoidea (from the Greek ekhinos 'spine'). An octopus (PL: octopuses,octopi, or octopodes, see below for variants) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ k t p d /, ok-TOP--d).The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a [In this image] Planarian reproductive system. Order 5. scorpion, (order Scorpiones or Scorpionida), any of approximately 1,500 elongated arachnid species characterized by a segmented curved tail tipped with a venomous stinger at the rear of the body and a pair of grasping pincers at the front. A sex organ (or reproductive organ) is any part of an animal or plant that is involved in sexual reproduction.The reproductive organs together constitute the reproductive system.In animals, the testis in the male, and the ovary in the female, are called the primary sex organs. Primarily nocturnal, scorpions often A copulatory organ on the tail collects the sperm and transfers it to the partner's seminal receptacle through the female gonopore. Both parts share a single opening called gonopore, which is located on the ventral side of the posterior half of the body. (iii) Gill bipectinate type. (v) The male gonopore is situated at the base of the right rhinophore. Examples: Sea hares, Aplysia, Petalifera, Notarchus, Bursatella, Akera. Squid distract attacking predators by ejecting a cloud of ink, giving themselves an opportunity to escape. The ventral side of somite 1 has a pair of genital opercula covering the gonopore. Sternite 2 forms the basal plate bearing the pectines, which function as sensory organs. For most populations the median age is five to eight years and the maximum age is fourteen to eighteen years. The 7th sternum is boat-shaped in females, and it forms a brood or genital pouch with the 8th and 9th sterna. The next four somites, 3 to 6, all bear pairs of spiracles. They have a shark-like body, average 1.5 m (4.9 ft) in length, weigh 27 kg (60 lb), and can live in excess of thirty years. The ventral side of somite 1 has a pair of genital opercula covering the gonopore. Examples: The body of a rotifer is divided into a head, trunk, and foot, and is typically somewhat cylindrical. Notaspidea: (i) Shell may or may not be present. The name urchin is an old word for hedgehog, which sea urchins resemble; they have archaically been called sea Primarily nocturnal, scorpions often An octopus (PL: octopuses,octopi, or octopodes, see below for variants) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ k t p d /, ok-TOP--d).The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a The sperm is sometimes packaged in spermatophores and is released through male gonopores that open, often temporarily, on the underside of the animal, roughly two-thirds of the way along the body. The genital atrium is a common chamber for male and female genital apertures, it opens externally by a gonopore lying ventrally in front of the acetabulum. The male has four testes; a short vas deferens arises from the testes and joins a seminal vesicle which enters a penis, the opens by a gonopore below the acetabulum. A possible early graptolite, Chaunograptus, is known from the Middle Cambrian. : Solifugae 1,100 Both parts share a single opening called gonopore, which is located on the ventral side of the posterior half of the body. The insect is made up of three main body regions (tagmata), the head, thorax and abdomen. They have a gonopore on the ventral cephalothorax, and the copulation is direct as male Opiliones have a penis, unlike other arachnids. Examples: Sea hares, Aplysia, Petalifera, Notarchus, Bursatella, Akera. Urchins typically range in size from 3 to 10 cm (1 to 4 in), although the largest species can reach up to 36 cm (14 in). There is a well-developed cuticle, which may be thick and rigid, giving the animal a box-like shape, or flexible, giving the animal a worm-like shape; such rotifers are respectively called loricate and illoricate. A possible early graptolite, Chaunograptus, is known from the Middle Cambrian. The female has an elongated ovary above the point where the intestine caeca rejoin, from the ovary an oviduct passes in front. American paddlefish are among the largest and longest-lived freshwater fishes in North America. Photo source: wiki There is a well-developed cuticle, which may be thick and rigid, giving the animal a box-like shape, or flexible, giving the animal a worm-like shape; such rotifers are respectively called loricate and illoricate. The head comprises six fused segments with compound eyes, ocelli, antennae and mouthparts, which differ according Insect morphology is the study and description of the physical form of insects.The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. According to studies, Monogenea is one of the oldest groups in the phylum Platyhelminthes having evolved from Turbellarians over 100 million years ago.. Three physical features separate insects from other arthropods: they have a body divided into three regions (called tagmata) (head, thorax, and abdomen), have three pairs Rotifers have bilateral symmetry and a variety of different shapes. They have a rigid, usually spherical body bearing moveable spines, which gives the class the name Echinoidea (from the Greek ekhinos 'spine'). They have a gonopore on the ventral cephalothorax, and the copulation is direct as male Opiliones have a penis, unlike other arachnids. The male has four testes; a short vas deferens arises from the testes and joins a seminal vesicle which enters a penis, the opens by a gonopore below the acetabulum. Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. Notaspidea: (i) Shell may or may not be present. The front half of the pouch contains the female gonopore, spermathecal pores, and collateral glands. (iv) Gill and osphradium on the right side of the body. The ventral side of somite 1 has a pair of genital opercula covering the gonopore. (iii) Gill bipectinate type. The sperm is sometimes packaged in spermatophores and is released through male gonopores that open, often temporarily, on the underside of the animal, roughly two-thirds of the way along the body. Urchins typically range in size from 3 to 10 cm (1 to 4 in), although the largest species can reach up to 36 cm (14 in). American paddlefish are among the largest and longest-lived freshwater fishes in North America. : Opiliones 6,600 4 The cirrus or penis, seminal vesicle and prostatic glands are surrounded in a common cirrus sheath or cirrus sac. The body of a rotifer is divided into a head, trunk, and foot, and is typically somewhat cylindrical. [In this image] Planarian reproductive system. They have a shark-like body, average 1.5 m (4.9 ft) in length, weigh 27 kg (60 lb), and can live in excess of thirty years. The cirrus can be everted through the gonopore during copulation. The age of American paddlefish is best They serve as openings for the scorpion's respiratory organs, known as book lungs. Although diverse, insects are quite similar in overall design, internally and externally. All species lay eggs . Examples: (v) The male gonopore is situated at the base of the right rhinophore. All species lay eggs . All species lay eggs . They have a shark-like body, average 1.5 m (4.9 ft) in length, weigh 27 kg (60 lb), and can live in excess of thirty years. The ink gland and its associated ink sac empties into the rectum close to the anus, allowing the squid to rapidly discharge black ink into the mantle cavity and surrounding water.
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