On: Two parallel neural ectoderm progenitors contribute to the developing brain

[nextaccountic]

Are there other composite organs?

[grvbck → nextaccountic]

Does the adrenal gland count?

[thaumasiotes → nextaccountic]

https://en.wikipedia.org/wiki/Siphonophore

[mcherm → thaumasiotes]

That isn't even remotely related to the parent question. Organisms =/= Organs.

[thaumasiotes → mcherm]

Do you think siphonophores don't have organs?

[hulitu → nextaccountic]

Yes, but this is left for the next years because they give only one Nobel preis per year.