Video tutorial “Type of flat worms. Type Flatworms. Systematics Type Flat worms Class of worms Representative: Bila (milky planaria) Class Suckers Representative: Pechinkovy. Misseperebuvannya flat hobakiv

Pidshkirny worm risht

To worm out worms, to live in the blood of the people. Before them, schistosome is introduced. The main center of living is bloodshed judges... However, the stench of good health penetrates into the organisms, the symptoms of a severe sechostatic system, liver, nirok suffer.

In the blood, the larvae of deyakhelmintiv can be rebuilt. For example, in the worms, the broadening of the organism of the industrial economy is seen in this way. With the flow of blood, the larvae migrate into the growing organisms, de-close and set up the bristles, and replace the heads of mature worms. If it gets into the herb tract of the residual ruler, it will be attached to the intestine wall, giving an ear of the person's state.

Flatworms: zagalny characteristic

Tilo flat chrobaks in the building, there are folding and versatile rucks

All flat worms may zagalny rice budovi:

• The most famous cuticle covering of the performances. In vily-living individuals, the surface of the worms is smooth.
• A decal of balls of ointment fibers is rounded off with a curved cover.
• Empty tila dumb.
• The herb system is less than one opening - mouth. The intestines will end slavishly. Deyaki worms in the worms released the organs of etching. So, to the small worms, what a clay lively speeches with all the flesh for the education of the gut of the ruler, the stench is not consumed.
• The circulatory system and the blood are dumb, as well as the organs of the environment.
• The visible system is represented by a hedgehog tube, which permeates all the body.
• The nervous system is primitive. Close to the throat of the ganglion, from which come through the nerves of the storm. Organism is almost formed in lichen in wild-living individuals and worms at the larval stages of development.

The system, which is kindly deisened, is an article. Flatworms are hermaphrodites. Reproduction is possible for the participation of 2 individuals, or a way of self-propagation.

flukes

The cycle for the development of trematodes is one of the most common. Z yєts, scho we had a meal in the midst, go miracidia. At the water's edge, you feel comfortable and for a day you feel like living organisms. Offensive stage- vprovadzhennya miracidium in the first industrial ruler. The larva robs the price for the help of a special laughing apparatus at the head. Call a hundred molluscs as Lord.

The cycle of life can be met in the decile of the gentlemen and is accompanied by regular cherguvannya

Here miracidium transforms into a sporocyst, yak gives an ear of the onset stage to a cycle of development - redia. Those, in their own heart, є in front of the church, as they overshadow the intermediate ruler, and once again enjoy the midst of the water. The development cycle was given one by one from two options. Cercariae are transformed into cysts without the middle in the middle middle (primed to the water) or in the body of another industrial ruler (mollusk, ribe, amphibian).

We found the worms with the glimpse of the shell

Infection of the residual ruler is diagnosed at the reception of the information organs of the industrial one. The development cycle is completed by attaching the head from the brush to the intestine wall and with the development of a mature chrobak. The rest can reach significant sizes (for example, the tape is wide virostaє up to 10 m of the head).

Lyudina is a remnant gentleman for flukes, but for worm worms it can be industrial.

What are the symptoms when people are infected with helminths? Klіnіka zhvoryuvannya was pummeled, persh for everything, Tim, what kind of body emerged from hostilities. The state of appearance of worms grows to live in the intestines, so in the backward picture of ailments they cope with symptoms typical for etching disorders: nudota, gas dissolution, damaged style, beating in the stomach.

Helminths see the products of life, such as, they are consumed in the shelter, they suffer from detoxification and symptoms of intoxication (increased temperature, stomachache and іnshі). Besides, you smell immune system yak allergen. It is not easy for the helminthosis to be supervised by symptoms of an allergic reaction (hanging on the screen, sverbіzh).

Flatworms, which enter up to a group of bilaterally symmetric, vivchaє science of biology. Flat worms (Platyhelminthes) are not one of the representatives of the whole group, before it is introduced more than 90% of animals, including many parts and round worms, arthropods, molluscs and others.

You can see flat hooves of versatile and widening in the whole world. Їх nalichuu close to 25 yew.

Science Classification of Flat Hoods

Flatworms lead to the kingdom of bilateral (symmetric from two sides) at the link with the super-strands, which winnished when trying to break flat barrels in a different group, even in some groups. Vona includes representatives of a small part of the grounds of some and quiet ancestors.

Budova internal organs of the flatworm

A lot of flat hooves podvazhenny and flattened, in the middle is not empty. Tobto the whole space of yogo is memorized by clitines. In the middle of the rosette balls of the musculature, as at the same time with the shell of the hrobak, they create a shkirn-muzovy bear.

Internal systems and internal organs:

• The herbal system is represented by the mouth and slips (not by the way) by the intestine. The living words come through the mouth, and can be absorbed by all the surfaces of the body.
• The nervous system is stored in the cerebral ganglia and nerve stems. Deyak_classi of flat hrobak_v may be primitive organisms of r_vnovagi, zoru.
• A visible system is stored from special channels, and more often for all images it is displayed on the entire surface of the floor.
• The state system is represented by both the female (yachniki) and the cholovic (testicular) body organs. Hermaphrodite flatworms.

Views of flat and round worms

Round worms grow out of flat timbers, but with a transverse transformation, they are round in shape. Round worms are accepted by nematodes. Volodyuchi double-sided symmetrical budova tila, the stench may smell rosy musculature. Allegedly, the view of the flat hooded fields is in the fact that the inner empty space is round, and the flat is dumb.

Diversification of the classes of flat hrobakiv

The table "Flat worms" showed by way of sight to the class, which science is now available.

Name the class	Seredovische living		Life cycle
Monogenne (flukes)	Behind the help of the brake disc on the rear end of the Monogenaeus hrobak, attach to the wild finches of the ribs and the amphibians and turtles	Even small, in the middle not more than 1 mm	For all life, the worm has only one ruler, until it is consumed by the viglyad, a floating larva
Cestode		Dovzhina can be adjusted from 2.5 to 38 cm	The larvae develop in the most crayfish when eggs are raised. With the development of cancer-like aquatic ridge, the individual has already grown up easily from the intestines of the new ruler to move into empty space, live and multiply
aspidogastri	Live in molluscs, freshwater and sea ribs	The individual has grown to a small extent, the size is larger than 15 mm	Kilka razіv vіdbuvayuyuyuyuyu vіmeny gospodarіv for the life cycle of hrobakіv
Trematodi (flukes)			For all life, there are a few gentlemen. The larva lives in the same place as the world. Consume everything in the middle with a cercariae (ready to populate in the organisms of the residual ruler of the larva)
gyrocotilide		From 2 to 20 cm	It is hypothetic that the larvae develop in the midst of the industrial sector, and later move into the riba. Ale, due to the fact that it is chimeric ribby glybokovodnі, the hypothesis has not been confirmed by the experimental path
strіchkovі	The navkolishn middle of the flat chrobakіv intestines of the savts and people, until the stench of the stench it is mild to snuggle behind the help of the head	You can reach sizes up to 10 m.
vіychastі	In the main, live worms, linger in the wildest and salty waters, sometimes near the vologous soil	Dovzhina tila can be used in microscopic sizes up to 40 cm	The larva is similar to a full-grown hrobak to go out from the egg, baggy in the middle of the plankton, do not go virost

all worms

Є hijacks, which live in the family of other spineless, arthropods and bring great molluscs. The stench is completely wrapped around the dribnu, or with strong smoktalny rukhs to wipe out her shmotchka.

Only the worms are regenerated independently. We will be a representative of the Planarian, at the place of navi a small part of the house is reintroduced into a new person.

Flat worms in home watercolors

Gelminti can be a great problem for lovers of breeding ribs in watercolors.

The navkolishnє middle of the flat chrobakiv in the main water. As flukes, flat worms can hide behind an additional bed disk to the surface of the wilds and the worms of aquarelle ribs.

In addition, worms lay eggs, from which they enter larvae, as they live on ribs. Step-by-step perevzayut stench on the chickpea, grow, reach the state of maturity.

Deyakі vidi flat hrobakіv use in home watercolors with soil, live food. The larvae can perebuvati on the surface of the algae, on the skirts, inhabited in the watercolors of new ribs.

• Pseudophyllidea (broad ribbon). Infected їm can come, as in the presence of sire, the riba is badly salted. In the small intestine, people can live for ten years, reaching up to 20 m.
• Aeniarhynchus saginatus ( scourge tsip'yak). The navkolishnє middle of the flat chrobak is the intestines of the people and the great horny thinness. Sucking up to the first step, the helmint virosta is up to 10 m. importantly accessible places(Mozok, m'yazi, pechinka), that is often because of them it is uncomfortable to get overwhelmed. A sick person may have a lethal end. Infected infusion when the helminths get into the slurry from the lack of thermally crushed skin, from the hands.
• Echinococcus (Echinokok) is often seen in dogs and cats, from which they pass into the body to humans. Unimportant on insignificant sizes - only 5 mm - the health of the larvae to set up fini, to paralyze internal organisms, is mortally insecure. The larvae are welcome to penetrate into the mental, cyst, and other systems. Flat worms are often found in the brain, liver and other internal organs. Lyudin can easily become infected with larvae, which is seen in the feces of a dog, which expands on the wool, and goes on all objects and is beaten.
• Pechinkovy sisun - a blame for cholecystitis, pechinka rings, damage to the robot and intestines, allergies. The navkolishn middle of the flat hrobak is over the heart of the people and warm-blooded creatures, zhovchivіdnі way. Dovzhina tila fluke does not change 3 cm. Especially those who are not only mature individuals, but the larvae are ready to breed.

Prevention of infection with helminths

Prophylactic enter the feeding of eggs and larvae of helminths into the organism of humans and glade at the offensive:

• It is necessary to wrap your hand in a cute place before the skin reception. huge mice, Toilet, streets, spilkuvannya with home-made creatures.
• Mityi siri vegetables and fruits with warm water and sweet.
• Do not live in the house white meat and ribi.
• It was trivial to give warm food to food, especially meat, ribu.
• Give respect to your own prophylactic worm infections of domestic animals.
• Regularly, not earlier than once per rick, add feces analysis for worm eggs.

The covers of the body. In most frequent worms, for example, turbellaria, epithelium are stored in cells, which may be in vіyki. Flukes, monogenic, cestode-like and line worms, stretching out a large part of the life, letting go of the dietary food (if some of the cells can develop in older forms); They are represented by the so-called tegument, in a number of groups they carry microvilli, or even hitting slips. Flat chrobaks, which are volodiyut tegument, are brought to the Neodermata group. Flatworms can regenerate 6/7 of their body.

Musculature Pid epithelium grows out of the musculature, so that it is stored from the decal balls of the musculature, since they are not differentiated on the surface of the musculature (the singing differentiation of the organisms is promoted to the status of Klіtini zvnіshnogo meazovogo ball orієntovanі across, internal - bridle front-rear axle til. The called ball is called the ball of the ring muscles, and the inner ball is called the ball of the later muscles.

Nervous system and organ-sensitive The nerve system is represented by nerve nodes, rosette in the anterior part of the hrobak, cerebral ganglia, and enter through them by nerve stops, with the same jumpers. Organizationally, as a rule, are represented by okremny shkіrny vіy - sprouts of sensitive nerve cells. Deyakі vіlnivuchі representatives of the type in the process of attracting to the minds dribbled sensible pictures - primitive organizing and organizing rіvnovagi.

Budova Tilo bilaterally symmetric, with a clearly curved head and tail fins, a little flattened in the dorsoventral right-hand side, in the great representatives - strongly flattened. Porozhnina tila is not rooted (due to the fault of the phases of the life cycle of worms and flukes). The exchange of gases will pass through the entire surface of the floor; Organizational energy and blood-bearing judges from the outside.

Pitannya: Sack of flat sackcloths in Russia? How did you curl up in flat hrobaks? Yak musculature? Yaki organi chuttya? Describe Briefly Budova Tila Yak dick? Yak multiply?

Tsikavi facts 1. With a hole, the flat worms are "read" with a hole. A group of people in the group was making an unintelligible display of the health of the flat hooves. When planar worms appear in a handful of ways, they pass the labyrinth, then grind them in mashed potatoes and give them worms, so you can go through the labyrinth for the first time.

Tsіkavі facts 2. The most common type of worms - schistosome and inseparable stretching out of life. The female lives in the kishine, the male has all the life.

Tsіkavі facts 3. Mayzhe all kinds of flat hrobakіv can vivertatisya navivorіt. 4. And the axis is still tsіkavі facts about flat hrobakіv. For example, flat worms are truly immortal. As soon as a small shmotochka is about 1/100 of a part of the whole chrobak, it is all one built up to the whole organism.

Figures 5. On a number of planarians, living in clear water, some cropping cells appeared, which are even more similar to the wretched clitini, which are evident in the intestine-emptying individuals. It turns out that the cells of the worms had formed coelenterates earlier, as a result of which there were some worms. Sorry klіtiny hrobaky not overtravel. The stench is to be enjoyed in your house and to serve for the visitor's function and attack.

L i

Peculiarities of Budov and Bilateralsimmetric - one empty symmetry is to be cut to the left and half to the right. The development is made up of three embryonic leaves: ectoderm, entoderm and mesoderm. The third germinal leaf appears first in the course of the evolution and gives the ear of development of parenchymal cells, so that the processes between the organs and the meat system are stored. Liva half Right half

Peculiarities of budovi Razmiri tila from 2-3 mm to 20 m I have a striking or leaf-like shape. Characteristic is the manifestation of the rosy organ systems: meat, grass (visible in strikers), visual nervous and statical.

Covers of thyla and myazova system of Klitin's nutrition and muscles vіdokremlenі osіti. The small ball is stored from a single-ball food (in the water forms of the food) and three balls of smooth mouths: ball-shaped, late and oblique). Deyaki representatives may also be spinal-cherevnіyazi. Rukh will take care of fast muscles (flukes and worms) for any kind of food and fast muscles (in parts of worms).

The herb system is two-sided - anterior (mouth, pharynx) and middle (intestinal bowels). The intestine is closed in the slit, the posterior opening of the intestine and the anal opening in the intestine. Non-etched surplus can be seen through the mouth. The grass worms have a herbal system of the daytime (represented by some herbal cells).

A visible system of illumination with a system of tubules, one end of which is repaired in a parenchyma of a green cell with a bunch of vyyok, and one that flows into a visible duct. The duct is united into one or two back canals, which end with visible pores.

Nervous system. Organi chutta. It is built up from the supraopharyngeal nerve nodes (ganglions) and late nerve stubs, which are tied by transverse nerve straps. Organize pochuttіv-dotiku and chіmіchny sensitiveness. In vilnivuych є organisms and іvnovagi.

Pechinkovy sysun Pechinkovy flukes, add 3 cm in reach, 1.3 cm in width symptoms of the stage of illness - pain in the back, stinging, headaches and loss of sleep. Lіkuvannya is carried out with antihelminthic, zhovchogіnnі and enzyme preparations. So it will be stagnant electromagnetically high frequency.

Development cycle Life cycle development cycle. In species of the genus Fasciola, the growths are found with one intermediate ruler (primordial vodar), and the contamination of the residual haze is caused by the cultivation of water or transferred from the coastal roslin to the stage. In species of canopies of Opisthorchis and Clonorchis, another industrial ruler is a freshwater riba, and contamination of the residual khazyaina occurs during the transmission of syroid riba with invasive stages. In species of the genus Dicrocoelium, they serve as terrestrial legends and goosebumps as industrial hosts, and contamination of residual host (as a rule, herbaceous) occurs when an infected grass gets goose bumps.

Bichachiy tsip'yak (soliter) Enemy is great horned thinness and people, wicked teniarinhoses. Infection with scourge is especially widened in Equatorial Africa, Latin America, in Philippines and in some parts of Western Europe. The individual of the scourge has grown up to be stored for more than 1000 members and a reach of 4-40 meters per second. The bookmark of the statuette should be repaired approximately from the 200th segment. Dovzhina zrіlikh proglottid mm, width 5-7 mm. Scolex (head viddil) with 4 suction cups without hooks (inevitable). The term of the life of the scourge in the intestines of the people, as if they didn’t live any visits on dehelmintization, became rocky. For rіk tsіp'yak production ~ 600 mln yєts, for all life ~ 11 mln.

The cycle of development of the intestines of the people (the main gentleman) sees the segments to replace the eggs. At the same time with the grass, the stench is trapped in the cows (industrial gentleman). The six-hooked larvae enter the blood vessels of the intestine and then into the ointment. In meats, the larva transforms into fini (dance with the head of the tsip'yak vseredinі). With the implantation of rotten phinous meat by a human, the head of the cinch is attached to the intestinal wall and the joints start to produce.

Features of Budov and bilaterally symmetric. Razmіri from decіlkoh micrometers (soil) to decіlkoh meters (sperm whale nematode). May there be inarticulateness only with the schoennial cuticle. Vіykovy pokriv partly or more reductions. Tilo filamentous, fusiform, non-segmented, round in transverse reproduction.

The system of illumination of the anterior, middle and hind intestines is also herbal. The anterior gut is differentiated on the side: mouth with cuticular lips, pharynx and stravohid. The middle and hind gut at the end or end. The herbal tract ends with an anal opening.

Vid_lna system Represented by 1-2 shk_rnyy vines (vid_minen_ protonephridia). There are a lot of big cells, from which there are two canals from the sides of the cell. At the rear end of the channel, the canals end slowly, and in front of them they wind up in the middle of the day in a visible hour.

Nervous system. Organi pochuttiv Nervova system of similar type. Vona is represented by cephalic nerve nodes (ganglia), navkolotkovy nerve ring and decilcoma, nerve stubs (dorsal and transverse), middle transverse headers. The organisation is presented by the organs of the dotik and the chemical sense. Have marine formsє light-sensitive receptor. Diagram of the nervous system of ascaris: 1 - oral papillae from the back end and nerve endings, 2 - periopharyngeal nerve end, 3 - head ganglion, 4 - middle nerve stovbur, 5 - nerve end , 8 - sensitive papillae with external nerves, 9 - anal opening, 10 - dorsal nerve stovbur

Ascaris people Ascaridi are great round worms, and they can reach 40 centimeters. Nybils are often at odds with organis shlunkovo-intestinal tract, Viklicyut ascariasis. Let's love the living of grown-up individuals є the small intestine. Ascaris two-stage worms. Females of Ascaris can get more than 200 thousand eggs for a day. Putting eggs from the intestines of people into the ground. They develop larvae. Infection occurs when the water is pitty with water, the implantation of nasty vegetables, fruits, on some eggs with larvae. In the human organism, the larva robs the migration: after eating it in the intestines, it drills its steps and consumes it in the blood.

Peculiarities of Budovi Bilateral symmetry of tila. Size from 0.5 mm to 3 m In multi-bristled ones, the head is covered with the eyes, with tentacles and vusics. Tilo segmented (external and internal segmentation). Tulub can be made from 5 to 800 of the same segments, which can be shaped like a circle. Segments may, however, have the same call and internal Budov (metamerism) and display sub-functions. Metameric budova is the first step in regeneration.

Covers of the thistle and myazov system The wall of thyla is highlighted by the chuck-and-meazovy little ones, which can be stored in a single-ball food covered with a thin cuticle, two balls of smooth muzzles (the last one-globular young) With the fast-moving ringlets, the chrobak is old and thin, with the fast-moving late mouths, one must be short-handed and boast.

Porozhnina tila Secondary - whole (maє epithelial hang). At a large empty space, the floor is divided by transverse partitions, corresponding to the segments of the body. Porozhninna іdina є hydroskeleton and internal middle, you will take part in the transport of products to exchange, lively words and articles of products.

The herb system is stored in three types: anterior (mouth, mucous throat, stravohid, goiter), middle (tubular shlunok, middle intestine) and posterior (hind intestine, anal opening). Put the enzyme in the middle intestine to over-etch it. When you are wet in the middle of the intestine.

The circulatory system is closed. Є two vessels: dorsal and cranial, cuts in the skin segment with ring-shaped vessels. Behind the dorsal roof, the roof collapses from the back end to the front, along the transverse backwards. Rukh of blood grows up to the rhythmic speed of the spines of the spinal cord and the ringlet ("heart") in the region of the pharynx. Shelter at the bagatokh chervona.

The system is of the Metaneffective type. Metanephridia may look like a tube with funnels, two in the skin segment. The funnel, shaped by each, and the twisted tubules are located in one segment, and the short tubule, called the opening, visible hour, is in the middle segment.

Nervous system. Organi chutta. It is represented by the supraopharyngeal and subopharyngeal nerve nodes (ganglia), which are located in the periopharyngeal nerve, and by the cranial nerve lance, which folds into the paired nerve nodes in the skin segment, across the lateral nerves. In polychaetae, the organisms are rіvnovagi і zoru (2-4 ochі). We have a great deal of scent, exotic and light-hearted clitini.

Reproduction and development of Soils and freshwater forms in the main hermaphody. Statements develop only in the singing segments. Scheduled internal Straight line type. Without status reproduction, there will be brunches and fragmentation (regeneration workers). Morsk_ representatives of razd_lnostatyev_. Development with metamorphosis, lichinka-trochophora.

Number of species: close to 25 thousand.

Seredovische accommodation: To live everywhere in the middle of the world, including textiles and organic creatures.

Budova: Flat worms are the most common creatures, which have bilateral symmetry, three-layered structure, reference organisms and textiles in the course of the evolution.

bilateral(Two-sided) symmetry - this means that the edge of the creature can be made explicitly along the symmetry, with the right side of the creature will be mirror-like like a lion.

In the course of the embryonic development in trisharovikh tvarin mortgages three shari klin: call - ectoderm, Middle - mesoderm, internal - entodermi... In the skin ball, the following organisms and tissues develop:

z ectoderm mold shkirni pokrivi(Epіtelіy) i nervous system;

from mesoderm - myazova і from the resulting fabrics, articles, visible systems;

zentodermi is a herbal system.

In flat chrobaks, it is flattened in the dorsal-cranial right, the empty space is in the middle of the day, the space between the internal organs is filled with mesoderm cells (parenchyma).

Herbal system including the mouth, pharynx and intestinal blindfolds. Chastening and seeing non-etched surplus is seen through the mouth. The grass worms have a herbal system that increases the daytime, the lively words of the stench soak up the entire surface of the body, perebayuyu in the intestines of the sovereign.

vidilny organ - protonephridia... The stench is stored in thin rosaceous channels, on one end of which there are half-life (quick-witted) clitini sparse forms, buried in the parenchyma. Throughout the middle of the cycle, a bunch of vіy (instantaneous half) enters, a bunch of nagadu merekhtіnnya half (the name is "clitin"). Half-hearted cells will gulp with parenchyma products to a drop, and all will marry them in a canal. The canals appear on the surface of the floor in a visible hour, through the yak, the product can be seen in the body.

Nervous system similar type ( orthogon)... Vona is approved by the great head guy nervous university (ganglion) and goes out of the whole set of nerve stubs: two on the black sides, two on the back and two on the sides. Nerves stovbury z'udnanі mіzh itself the links. From the ganglion and stovburyv go nerves to the organs and shkirі.

Reproduction and development:

Flatworms are hermaphrodites. Statements of cells ripen in articles of lakes (gonads). Hermaphrodite maє yak cholovichi zalozi are women, so women are women. Zaplіdnennya - internal, zvvychay perehresne, so that the worms are exchanged by the infernal ridinoy.

CLASS worm worms

milky planaria, A small creature, the individual has grown to a size of ~ 25 mm and a width of ~ 6 mm, only flat, milk-white. On the front end there are two eyes, showing light from the temryavi, as well as a pair of tentacles (organ of chemistry), which are necessary for a joke. The planar is collapsing, from one side, the robots wake up, how to curl up the skirts, from the side, the fast-moving muzzles of the shkirno-muzovy bear. The space between the parenchyma and internal organs of the parenchyma, in which they develop industrial rooms, We are looking for regeneration and stateless reproduction.

Planar - hijacks, like eating other creatures. The mouth is located on the black side, closer to the middle of the body, from the mucous throat, from which there are three throats of the closed intestine. Having grabbed a victim, the planarian with a throat vmist. In the intestine, there is an overtravel of enzymes (intestines), intestines of the intestines are overwhelmed and overtravel of the little ones (internal etching). Non-etched surplus can be seen through the mouth.

Reproduction and development... Vіychastі is hermaphrodite. Zaplydnennya perekhresne. Put the eggs into a cocoon, which is a worm that is put on the underwater objects. Straight rosette.

CLAS flukes

4 - sporocyst; 5 - redia; 6 - church; 7 - adoleskary.

CLASS LONTOCHROBAKI

scourge tsip'yak- a striking worm, reaching for a maximum of 4 to 12 meters. Tilo includes a head with suction cups, a collar and strobes - a line of segments. The youngest segments are found in the shyki, the oldest are the little ones, filled with eggs, they are located at the back end, de stinking one after the other.

Reproduction and development... Bichachiy cip'yak - hermaphrodite: in the cutaneous segment there is one cell and a bezlich family. Spostering as overwhelmingly late, as well as self-serving. The posterior segments, filled with mature eggs, emerge, and, with feces, are named. A great horny thinness (an industrial gentleman) can penetrate an egg at once with the grass, microscopic larvae can enter the egg from the egg in small gags, as the intestinal stalk is consumed in the shelter and spread all over the place. Here the six-hooked larva grows and transforms into finu- chubby, in the middle of which there is the head of the tsip'yak with a shykoyu. Lyudin can become infected with the Finns, if the meat of the infected creature is not properly boiled. At the slunk, the people from the fish walk the head, the yak is attached to the intestine wall. From the shyki, new segments emerge - the worm of growth. Scourgey cip'yak vid_lya otruyny speeches, as they wicked at people gut and underwhelmed.

branch pig's tsyp'yaka I have a strong character, the pig and wild boar can be a ludin, as the industrial ruler of the pigs and wild boars, so in the yogo meazov finks develop. branch wide tape Supravodzhuchatsya snake two industrial gentlemen: the first - cancer (cyclops), the other - riba, yak z'yila crustacean. The remnant ruler can be a lyudin or a hijak, who is infected with riba.

New understanding and terms: mesoderm, shkіrno-muzovy bear, tegument, hypodermis, reduction, protonephridia (half-clitini), orthogon, strobila, ganglia, gonads, hermaphrodite, direct and indirect developmental, residual, world-wide , unbroken and unbroken tsip'yak.

Food for zakr_plennya.

1. Who is called an industrial master? Remaining?

6. Chim is not without a pity sira water Do you swim near the waters close to the vipas of thinness? Why is it necessary to wrap your hand with a sweetheart when you spilkuvannya with creatures?

7. For which worms are tooth jelly?

8. Have you brought the aromorphosis to the type of Flatworms?

Lectures on Zoology

Type Roundworms

Dispatch plan:

· Zagalna characteristic round worms

Budova tila Ascaridi human

· Reproduction and development of Ascaridi human

Classification of round worms, development of species

Significance of round worms in nature and life of people