A) do organisms that molt (ecdysozoans, includes: loricifera, kinorhyncha, nematoda, tardigrada, arthropoda and onychophora) form a monophyletic group? explain.

b. as what type of trait would you classify the ability to molt (synapomorphy, symplesiomorphy, homoplasy) ? explain.

c. if you group all segmented organisms (blue circles), would they form a monophyletic clade? explain.

d. as what type of trait would you classify body segmentation (synapomorphy, symplesiomorphy, homoplasy) ? explain you answer.

e. do you think segmentation appeared once in the ancestor of these groups or appeared independently in each group? explain your answer in terms of parsimony.

Question

Biology

Lizeth Pope

5 December, 07:28

A) do organisms that molt (ecdysozoans, includes: loricifera, kinorhyncha, nematoda, tardigrada, arthropoda and onychophora) form a monophyletic group? explain.

b. as what type of trait would you classify the ability to molt (synapomorphy, symplesiomorphy, homoplasy) ? explain.

c. if you group all segmented organisms (blue circles), would they form a monophyletic clade? explain.

d. as what type of trait would you classify body segmentation (synapomorphy, symplesiomorphy, homoplasy) ? explain you answer.

e. do you think segmentation appeared once in the ancestor of these groups or appeared independently in each group? explain your answer in terms of parsimony.

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Answers (1)

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Yasmine Boyle · Answer 1

What do u mean A) do organisms that molt (ecdysozoans, includes: loricifera, kinorhyncha, nematoda, tardigrada, arthropoda and onychophora) form a monophyletic group? explain.

b. as what type of trait would you classify the ability to molt (synapomorphy, symplesiomorphy, homoplasy) ? explain.

c. if you group all segmented organisms (blue circles), would they form a monophyletic clade? explain.

d. as what type of trait would you classify body segmentation (synapomorphy, symplesiomorphy, homoplasy) ? explain you answer.

e. do you think segmentation appeared once in the ancestor of these groups or appeared independently in each group? explain your answer in terms of parsimony.