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Parasitic adaptations in platyhelminthes Or Flatworms explained in Hindi by Muskan perween.

Phylum platyhelminthes also known as the flatworms . They are free living and parasitic also. best example of platyhelminthes is tapeworm, flukes or trematoda etc.

Endoparasitic Flatworms(except turbellarians) live inside the host body and take their nutrition from them and also causes little harm to the host

Endoparasites changes their body structure and behavior to live in the hostile environment of host's alimentary canal or intestine

They morphologically and physiologically adapted to live parasitic mode of life

Adaptations in their -
Tegument Or cuticle
Develop organs for attachment like sucker and hook
Locomotory organs absent
Alimentary canal partially or wholly absent
Nervous system simple
Sense organs absent in adult form
Circulatory system absent
Reproductive system well developed
They are hermaphrodite or monoecious
Musculature well developed
Osmoregulation takes place in cestoda
Anaerobic respiration
Millions of egg production
Multiple host
Many larval stages etc.

Full notes with well labelled diagrams. You also make notes from this video it is helpful to every biology students.

Here also:

Phylum platyhelminthes characters and classification
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Fasciola hepatica life cycle
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Invertebrates:    • Invertebrates  


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