객관식
Plants evolved from green algae approximately _____ million years ago.
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21. Evolution
Introduction to Evolution and Natural Selection
객관식
One group of reptiles, exemplified by the fossil Archaeopteryx, led to the evolution of ________.
A
cartilaginous fish
B
birds
C
mammals
D
amphibians
검증된 단계별 안내1
Understand the context of the problem: Archaeopteryx is a well-known fossil that provides evidence of the evolutionary transition between reptiles and another group of animals. It is important to identify the traits of Archaeopteryx and its evolutionary significance.
Recall the key characteristics of Archaeopteryx: It had features of both reptiles (e.g., teeth, a long bony tail) and birds (e.g., feathers, a wishbone). This makes it a transitional fossil.
Analyze the evolutionary lineage: Archaeopteryx is considered a link between reptiles (specifically theropod dinosaurs) and modern birds. It provides evidence that birds evolved from certain groups of dinosaurs.
Eliminate incorrect options: Cartilaginous fish, mammals, and amphibians are not directly related to the evolutionary lineage of Archaeopteryx. These groups evolved through different pathways.
Conclude that the correct answer is birds, as Archaeopteryx represents an early stage in the evolution of birds from reptilian ancestors.
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