How do Planaria breathe?
Definition of Planaria:
Planaria are a group of organisms known as the flatworms, which are classified in the phylum Platyhelminthes. These organisms are invertebrates with a distinct head and bilateral symmetry. They lack a true body cavity and are known for reproducing through regeneration.
Answer and Explanation: 1
Planarians, like other Platyhelminthes, lack a body cavity (coelom) and do not have complex organ systems. They breathe, or respire, through...
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fromChapter 16 / Lesson 9
Planaria, also called flatworms, are found in both salt water and fresh water environments and even damp places on land. They're amazing creatures with some unbelievable tricks for survival - they've been on this planet for over a half a billion years!