Which of the Following Statements Is (Are)true Regarding the Reptiliomorph

question 6

Multiple Choice

Which of the following statements is (are) true regarding the reptiliomorph lineage? Check all that apply.

• A) The reptiliomorph lineage includes modern reptiles (including birds)and mammals as well as extinct relatives of these animals.
• B) The reptiliomorph lineage includes both amniote and anamniote ancestors.It is possible that we will never know where amniotic membranes arose within this lineage as soft embryonic membranes do not fossilize.
• C)Anamniotes are definitely considered to have been reptiles even though they did not have amniotic eggs.Other characteristics are definitely reptilian.
• D) Anamniotes had a mix of amphibian/reptilian features including five digit forelegs and an atlas and axis that increased head mobility.Anamniotes are probably basal in position in the lineage they share with amniotes.

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