Planarians lack dedicated respiratory and circulatory systems. this deficiency does not cause a problem because ________. planarians lack de

Question

Planarians lack dedicated respiratory and circulatory systems. this deficiency does not cause a problem because ________. planarians lack dedicated respiratory and circulatory systems. this deficiency does not cause a problem because ________. they lack mesoderm as embryos and, therefore, lack the adult tissues derived from mesoderm their body cavity, a pseudocoelom, carries out these functions their flame bulbs can carry out respiratory and circulatory functions none of their cells are far removed from the gastrovascular cavity or from the external environment

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2022-05-22T05:59:50+00:00 2 Answers 0

Answers ( 2 )

  1. Bella
    0
    2022-05-22T06:00:50+00:00

    respiratory and circulatory system

  2. Sarah
    0
    2022-05-22T06:00:53+00:00

    I think the deficiency of dedicated respiratory and circulatory systems in Planarians does not cause a problem because none of their cells are far removed from the gastrovascular cavity or from the external environment. Planarians are free-living flatworms and form the class Turbellarians in the Phylum Platyhelminthes. Flatworms have three tissue layers, that is the ectoderm, mesoderm, and endoderm.

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