Sentence Examples


  • There is no free-swimming planula larva, but the stage corresponding to it is passed over in an enveloping cyst, which is secreted round the embryo by its own ectodermal layer, shortly after the germ-layer formation is complete, i.e.
  • The spadix forms a gelatinous cyst, the so-called acrocyst (ac), external to the gonotheca (gth), enclosing and protecting the embryos.
  • Thus a mass or chain of embryos is produced, lying in a common cyst, and developing as their larval host develops.
  • The peculiar feature of the larval history of Cestodes is the development in most cases of a cyst or hydatid on the inner wall of which the scolex is formed by invagination.
  • The cyst is filled with a toxic fluid and may bud off new or daughter scolices.

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