Suggest how body shape can help you explain why planarians have no respiratory or circulatory system.
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the flat warm have body which are very thin. As a result of this they have pore in the body which allows diffusion of gases through the body surface. As a result of this they do not have circulatory system or respiratory system because diffusion of gases and circulation of the substances takes place to the pore
Explanation:
- Platyhelminthes, literally means 'Flatworms' and tapeworms show all the characteristics of organisms belonging to this phylum.
- Basically, the phylum platyhelminthes, consists of flatworms. It contains about 5000 species of different kinds of flatworms.
- Members belonging to this phylum have soft, thin bodies,often look like a leaf or ribbon like.
- Tapeworms are a group of parasitic flatworms, belonging to this phylum.
- Tapeworms are internal parasites. These thrive in the digestive tracts of animals and humans as well.
- Tapeworms can cause serious health issues as they rob us of nutrients that we intake for benefit of our bodies.
To know more about Tapeworms,
what are Platyhelminthes? Brainly.in
brainly.in/question/2246495
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