Question

Complete the character matrix and create a phylogeny based on this data matrix: 10 points Character Polymorphic body form Box-like medusa Anthozoa Cuboza Porifera Ctenophora Hydrozoa Loss of polyp stage Loss of medusa stage Planula larval stage Nematocysts Spicules Ctenes Asymmetrical Draw your cladogram here: a. Circle and la bel - a monophyletic group (label a), two sister taxa (label b), a paraphyletic group (label c).

Answer 1

polymorphism is absent in the porifera and ctenophores where as hydrozoa and cuboza exhibit polymorphism.

porifera Ctenophora Ctenop Hydrozoa Cuboza Anittiozoa. character Polymorphic body form Box-like medusa paydo is pres loss of polyp Stage loss of medusa stage Planula boval Stage Nematocysts spicules ctenes Asymmetical No X symmetri-radal Binadially symety 2019-9-24 07:43

Porifera are asymmetric with spicules on their body in the later phyllums these spicules are absent

Ctenophores have ctenes on their body, these are absent on other phyllums.

Hydrozoa has polymorphism and exibhit both poly and medusa. Hence loss of poly or loss of medusa is absent in them.

Cuboza is a class of cnidarians. These contain box jelly fishes. Planula larval stage and nematocysts are seen in this. and the body have box like medusa.

Anthrozoa has only poly stage and no medusa, hence loss of medusa.