Презентация на тему Eukarya Kingdom: Animalia ٍSubkigdom : Metazoa Triploblastic Animal

Domain : Eukarya Kingdom: Animalia ٍSubkigdom : Metazoa  Triploblastic Animals- I- Acoelomate Animals  Flate Characteristics 1. They are soft bodied, unsegmented worms.2. They show bilateral symmetry and dorsiventrally flat worms3. Characteristics cont.8. Circulatory and respiratory systems are absent.9. Nervous system and sense organs are poorly developed.10. Phylum Platyhelminthes is divided into three classes:Class I:- TURBELLARIAEx. Planaria sp.Class II:- TERMATODAOrder: DigineaEx1- Fasciola sp.Ex2- Schistosoma CLASS I: TURBELLARIA :1. Mostly free - living forms found in fresh or sea waters or Class:- Turbellaria EX. : PLANARIA . 6 April 2017 6 April 2017 CLASS II : TERMATODA :These are commonly known as flukes.These are ectoparasitic or endoparasitic forms.Body is unsegmented CLASSTrematodaORDERDigeneaFasciola sp. Schistosoma sp.ORDERMonogenea6 April 2017 Ex 1: Fasciola Hepatica (liver flukes)An endoparasiteHas 2 hosts(digenea)Primary host : sheepSecondary host : snailInfective stage 6 April 2017 Anterior mouthHas 2 suckers (oral and ventral)HermaphroditeBody surrounded by tough resistant tegument 6 April 2017 1-Digestive systemIncomplete (has no anus)At the anterior end of the body a mouth opening is present 2-Excretory systemIn liver fluke the excretion is carried out by flame cells.It has a longituidnal excretory 3-Reproductive system6 April 2017 T.S in Fasciola Hepatica6 April 2017 TestisMain excretory canalParenchyma tissue 6 April 2017 Intestinal caecumTestisParenchyma tissue 6 April 2017 Branch of excretory canalVitelline glandP.T.6 April 2017 TSpTCLMFPT: TegumentSp: SpiculeLMF: Longitudinal muscle fiberTC: Tegument forming cellP: Parenchyma6 April 2017 Ex. 2: Schistosoma sp.Unisexual(dioecious)Male having a gynecophoral canal   (schisto-soma = split body)Live inside blood 6 April 2017 CLASS III : Cestoda Ex. : Taenia sp.endoparasites Body covered with thick cuticle. Mouth , digestive The tip of the scolex is equipped with a retractable hook-bearing rostellum which acts like discs Made up of many segments called proglottids.Each proglottid is a reproductive unit that produces gametes.6 April The neck produces segments called proglottids which make up the body and tail. Each segment has Has at least 2 hostsThough they are sexually hermaphroditic, self-fertilization is a rare phenomenon. To permit Endoparasitic Primary host : human Secondary host: pigs or cattleInfective stage to human : cysticercusInfective stage Thank you!6 April 2017

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Слайды и текст этой презентации

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I- Acoelomate Animals Flate worms))- Phylum: Platyhelminthes 6 April 2017

Domain : Eukarya Kingdom: Animalia ٍSubkigdom : Metazoa Triploblastic Animals- I- Acoelomate Animals Flate worms))- Phylum: Platyhelminthes

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symmetry and dorsiventrally flat worms3. Triploplastic.4. Exo or Endo skeleton is completely absent.5. The parasite

Characteristics

1. They are soft bodied, unsegmented worms.
2. They show bilateral symmetry and
dorsiventrally flat worms
3. Triploplastic.
4. Exo or Endo skeleton is completely absent.
5. The parasite shows suckers or hooks or both for attachment to the host body.
6. They are the first animals to illustrate the development of organ system.
7. A true body cavity or coelome is absent, and the space between the body organs is filled with loose parenchyma.

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sense organs are poorly developed.10. Usually hermaphrodite animals.11. May be free living (Turbellaria), ectoparasitic or

Characteristics cont.

8. Circulatory and respiratory systems are absent.
9. Nervous system and sense organs are poorly developed.
10. Usually hermaphrodite animals.
11. May be free living (Turbellaria), ectoparasitic or endoparasitic. A few may be commensals.
12. The alimentary canal is either absent or highly branched. Anus is absent.(incomplete digestive system)

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TERMATODAOrder: DigineaEx1- Fasciola sp.Ex2- Schistosoma sp.Class III:- CESTODAEx. Taenia sp.6 April 2017

Phylum Platyhelminthes is divided into three classes:

Class I:- TURBELLARIA
Ex. Planaria sp.
Class II:- TERMATODA
Order: Diginea
Ex1- Fasciola sp.
Ex2- Schistosoma sp.
Class III:- CESTODA
Ex. Taenia sp.

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fresh or sea waters or on land.2. Body is unsegmented and dorsoventrally flattened.3. Epidermis is

CLASS I: TURBELLARIA :

1. Mostly free - living forms found in fresh or sea waters or on land.
2. Body is unsegmented and dorsoventrally flattened.
3. Epidermis is cellular or syncytial.
4 Intestine is either absent (Acoela) or simple and sac like (Rhabdocoela) or branched.

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Class:- Turbellaria EX. : PLANARIA .




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or endoparasitic forms.Body is unsegmented and enlongated.Adhesive organs are, one or two suckers without hooks

CLASS II : TERMATODA :

These are commonly known as flukes.
These are ectoparasitic or endoparasitic forms.
Body is unsegmented and enlongated.
Adhesive organs are, one or two suckers without hooks and spines.
Digestive tract is bifurcated and highly diverticulated. Anus is absent.

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CLASS
Trematoda
ORDER
Digenea
Fasciola sp.

Schistosoma sp.


ORDER
Monogenea

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sheepSecondary host : snailInfective stage to snail:miracidiumInfective stage to  sheep:metacercariae6 April 2017

Ex 1: Fasciola Hepatica (liver flukes)

An endoparasite
Has 2 hosts(digenea)
Primary host : sheep
Secondary host : snail
Infective stage to
snail:miracidium
Infective stage to
sheep:metacercariae


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tegument 6 April 2017

Anterior mouth
Has 2 suckers (oral and ventral)
Hermaphrodite
Body surrounded by tough resistant tegument


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a mouth opening is present surrounded by oral sucker leading to buccal cavity, which lead

1-Digestive system

Incomplete (has no anus)
At the anterior end of the body a mouth opening is present surrounded by oral sucker leading to buccal cavity, which lead to pharynx then into narrow oesophagus.
It opens into intestine which is divided into branches. Each gives side branches. The two branches end near the posterior end of the animal.
The tegument absorbs glucose from the host directly.

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cells.It has a longituidnal excretory canal. From it a number of branches will arise. They

2-Excretory system

In liver fluke the excretion is carried out by flame cells.
It has a longituidnal excretory canal. From it a number of branches will arise.
They branch again. The fine branches end with flame cells.
The longitudinal excretory canal opens at the posterior end through excretory opening.

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3-Reproductive system

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T.S in Fasciola Hepatica




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Testis

Main
excretory canal

Parenchyma
tissue

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Intestinal
caecum

Testis

Parenchyma
tissue

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Branch of
excretory canal

Vitelline gland

P.T.

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2017

T

Sp

TC

LMF

P

T: Tegument
Sp: Spicule
LMF: Longitudinal muscle fiber
TC: Tegument forming cell
P: Parenchyma

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= split body)Live inside blood vessels and are commonly known as blood flukes.Primary host :

Ex. 2: Schistosoma sp.

Unisexual(dioecious)
Male having a gynecophoral canal
(schisto-soma = split body)
Live inside blood vessels and are commonly known as blood flukes.
Primary host : human
Intermediate hosts : Snails
Eggs excreted with faeces or urine.
Infectice stage of snail : miracidia
Infective stage of human :cercariae.
Vertebrate infected by penetration of the skin.






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thick cuticle. Mouth , digestive tract and sense organs are absent. Fertilization is internal.The tapeworm

CLASS III : Cestoda Ex. : Taenia sp.

endoparasites
Body covered with thick cuticle.
Mouth , digestive tract and sense organs are absent.
Fertilization is internal.
The tapeworm use the scolex (diagram shown on the right), to attaches itself firmly to the host’ intestinal wall.

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rostellum which acts like discs with teeth to hold onto the intestinal wall.So, the tapeworm

The tip of the scolex is equipped with a retractable hook-bearing rostellum which acts like discs with teeth to hold onto the intestinal wall.
So, the tapeworm will just hang on to the intestinal wall and absorb food through their skin.
tapeworms do not have any digestive tracts and also lack mouths and digestive enzymes, unlike the other classes of platyhelminthes.

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unit that produces gametes.6 April 2017

Made up of many segments called proglottids.
Each proglottid is a reproductive unit that produces gametes.

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and tail. Each segment has both male and female reproductive organs. Segments can produce eggs

The neck produces segments called proglottids which make up the body and tail.
Each segment has both male and female reproductive organs.
Segments can produce eggs on their own but sometimes mate with other segments or even other tapeworms.
Segments absorb nutrients through their skin and have the ability to produce eggs.
Over time the segments fill with eggs and detach from the tail. They are then carried out of the body in the feces.

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a rare phenomenon. To permit hybridization, cross-fertilization between two individuals is often practiced for reproduction.6 April

Has at least 2 hosts
Though they are sexually hermaphroditic, self-fertilization is a rare phenomenon.
To permit hybridization, cross-fertilization between two individuals is often practiced for reproduction.

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to human : cysticercusInfective stage to pigs: eggs or proglottid6 April 2017

Endoparasitic
Primary host : human
Secondary host: pigs or cattle
Infective stage to human : cysticercus
Infective stage to pigs:
eggs or proglottid

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Thank you!

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