Thylacosmilus is a marsupial, and Smilodon is a mammal. Thylacosmilus and Smilodon both have saber teeth, but they do not share an ancestor that had saber teeth. What are saber teeth for these organisms?
A. analogous structures
B.homologous structures
C.vestigial structures
D.mutated structures
Answers
Answered by
19
Answer: A. analogous structures
Thylacosmilus and Smilodon don't have the common ancestor. Saber teeth development in them was due to course of adaptation resulted in evolution.
Answered by
8
Option A. analogous structures is the answer.
Detailed information about Thylacosmilus and Smilodon:
-Thylacosmilus is a marsupial mammal and Smilodon (cat) is a placental mammal.
-Both the species have an analogous (common) structure. i.e. long, curved, saber-shaped canine teeth. Though the saber teeth is seen in homology in both species, they do not have common ancestors.
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