Use the diagram below to answer the next question. (Diagram can also be found in Campbell Biology 3rd Canadian Edition; Figure 22.17 Tree thinking: information provided in an evolutionary tree.) Each branch point represents the common ancestor of the two lineages diverging from that point. Lungfishes Amphibians Mammals Digit-bearing limbs Lizards and snakes Amnion Crocodiles A hatch mark represents a homologous characteristic shared by all the groups to the right of the mark. Ostriches Feathers Hawks and other birds Which of the following conclusions is most consistent with the information in the evolutionary tree shown above? O Mammals are more closely related to birds than to amphibians. O Lizards and crocodiles (both of which have legs) are more closely related to each other than either is to snakes (which lack legs). Tetrapods Amniotes Reptiles Birds

Use the diagram below to answer the next question. (Diagram can also be found in Campbell Biology 3rd Canadian Edition; Figure 22.17 Tree thinking: information provided in an evolutionary tree.) Each branch point represents the common ancestor of the two lineages diverging from that point. Lungfishes Amphibians Mammals Digit-bearing limbs Lizards and snakes Amnion Crocodiles A hatch mark represents a homologous characteristic shared by all the groups to the right of the mark. Ostriches Feathers Hawks and other birds Which of the following conclusions is most consistent with the information in the evolutionary tree shown above? O Mammals are more closely related to birds than to amphibians. O Lizards and crocodiles (both of which have legs) are more closely related to each other than either is to snakes (which lack legs). Tetrapods Amniotes Reptiles Birds

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter12: Diversity Of Life

Section: Chapter Questions

Problem 11RQ: Which assumption of cladistics is stated incorrectly? a. Living things are related by descent from a...

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