anonymous
  • anonymous
What type of body plan is shown by ctenophores and nematodes?
Biology
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katieb
  • katieb
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shrutipande9
  • shrutipande9
nematodes have simple body plan which is tube within tube and are called as pseudocoels because they do not have a true ceolom. ctenophores have blind sac body plan.
goformit100
  • goformit100
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anonymous
  • anonymous
A tube within tube is one which the body has two openings, right? Ctenophores also have two openings, then why don't they have a tube within tube type of body plan?

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shrutipande9
  • shrutipande9
yes tube within tube is the one with two openings.
shrutipande9
  • shrutipande9
see earlier ctenophores were considered in coelentrata(cnidaria) because they are very similar to the cnidarians. i tried to search but i always got the body plan as blind sac.
anonymous
  • anonymous
Yeah, I got the same result when I googled it...

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