Caryophyllales (cacti, carnations, amaranths, and most carnivorous plants). This

Question

Caryophyllales (cacti, carnations, amaranths, and most carnivorous plants). This pigment is not found in other groups, and the Caryophyllales are derived from a common ancestor. The presence of betalain pigment in members of this group is a: A) homoplasy. B) synapomorphy. C) clear indication that the group is polyphyletic. D) All of these are correct E) All of these are incorrect. 54. Betalains are red pigments found in beets and other members of the order 55. A common ancestor with dark green leaves has given rise to four species, G, H, I, and J. G, H, and I have dark leaves; J has mottled leaves. A classification scheme has included G, H, and I but omitted J. This classification scheme would be considered to be: A) polyphyletic. B) monophyletic. C) paraphyletic. D) semiphyletic.

Explanation / Answer

54) Synapomorphy

It is a characteristic present in an ancestral species and shared exclusively by its evolutionary descendents.

55) Paraphyletic

Group of organisms decendend from a common evolutionary ancestor but not included in all the descendent groups.

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