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valkas [14]
3 years ago
14

1. Explain why planarians and flukes are called flatworms.

Biology
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer and Explanation:

Platyhelminthes are mostly worm like organisms that are dorsoventrally flattened, meaning they look like a leaf and this is why they are coined names like the Tapeworm, Flatworm, Fluke and Planarian.

Most Platyhelminthes are parasites on other animals but only the Turbellarians are mostly non-parasitic. A few species are commensalists, or mutualists living with other larger organism.

They are classified into:

  • Class Turbellaria
  • Class Monogenea
  • Class Trematoda
  • Class Cestoda

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Vitamin D has the sun as its major source, but it can also be found in fish, seafood, liver, mushrooms and meat. It is important for the growth and strengthening of bones, growth regulation, metabolism, insulin production and strengthening of the cardiovascular, muscular and immune systems. Its deficiency can provoke muscular and bone pains, spasms, intense weakness and calcium deficiency.

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