Which of the following phyla is diploblastic?

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(A) Diploblastic animals are those in which the cells are arranged in two embryonic layers,an external ectoderm and an internal endoderm.Cnidarians (p

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Cnidaria

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(A) Diploblastic animals are those in which the cells are arranged in two embryonic layers,an external ectoderm and an internal endoderm.Cnidarians (phylum $Cnidaria$) are diploblastic.Porifera (sponges) are generally considered cellular-level organisms and are often excluded from the diploblastic/triploblastic classification,though they lack true germ layers.Platyhelminthes (flatworms) are triploblastic,meaning they possess three germ layers: ectoderm,mesoderm,and endoderm.Therefore,the correct answer is $Cnidaria$.

$a$. Pennatula	$1$. Brain coral
$b$. Meandrina	$2$. Sea-fan
$c$. Gorgonia	$3$. Sea-pen
$d$. Adamsia	$4$. Sea-anemone

Similar Questions

Match the following columns:
$a$. Pennatula $1$. Brain coral
$b$. Meandrina $2$. Sea-fan
$c$. Gorgonia $3$. Sea-pen
$d$. Adamsia $4$. Sea-anemone

Select the correct sequence for $a, b, c, d$.

In which phylum is triploblastic organization $NOT$ observed?

Differentiate between: Polyp and Medusa.

Which phylum exhibits tissue-level organization for the first time?

The presence of which of the following is a characteristic feature of Cnidarians?

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