Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 27, Problem 14RQ
What type of data is primarily used to determine the existence and appearance of early animal species?
- molecular data
- fossil data
- morphological data
- embryological development data
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Chapter 27 Solutions
Biology 2e
Ch. 27 - Figure 27.5 If a Hox 13 gene in a mouse was...Ch. 27 - Figure 27.6 Which of the following statements is...Ch. 27 - Figure 27.9 Which of the following statements...Ch. 27 - Which of the following is not a feature common to...Ch. 27 - During embryonic development, unique cell layers...Ch. 27 - Which of the following phenotypes would most...Ch. 27 - Which of the following organisms is most likely to...Ch. 27 - Which of the following is not possible? radially...Ch. 27 - An animal whose development is marked by radial...Ch. 27 - Consulting the modern phylogenetic tree of...
Ch. 27 - Which of the following is thought to be the most...Ch. 27 - As with the emergence of the Acoelomorpha phylum,...Ch. 27 - Which of the following periods is the earliest...Ch. 27 - What type of data is primarily used to determine...Ch. 27 - The time between 542-488 million years ago marks...Ch. 27 - Until recent discoveries suggested otherwise,...Ch. 27 - Plant life first appeared on land during which of...Ch. 27 - Approximately how many mass extinction events...Ch. 27 - Why might the evolution of specialized tissues be...Ch. 27 - Describe and give examples of how humans display...Ch. 27 - How have Hox genes contributed to the diversity of...Ch. 27 - Using the following terms, explain what...Ch. 27 - Explain some of the advantages brought about...Ch. 27 - Describe at least two major changes to the animal...Ch. 27 - How is it that morphological data alone might lead...Ch. 27 - Briefly describe at least two theories that...Ch. 27 - How is it that most if not all, of the extant...
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- How could morphological data alone lead biologists to group animals into erroneous evolutionary relationships? please provide scientific explanationarrow_forwardList the three kinds of specific evidence that help us to discover the history of animal life.arrow_forwardAccording to the traditional classification of vertebrates, class Reptilia is a paraphyletic group because it does not include all descendants of a common ancestor. Which group has been left out of the classification but is really part of the reptile clade? Group of answer choices Birds Fish Amphibians Mammalsarrow_forward
- Which of the following periods is the earliest during which animals may have appeared? a. Ordovician period b. Cambrian period c. Ediacaran period d. Cryogenian periodarrow_forwardExamine the image below. To which fossil primate taxonomic group did it belong? During which geological epoch do we most likely find it? Taxonomic Group: Geological Epoch:arrow_forwardWhich of the following is a correct statement about the evolutionary relationships among vertebrates? Group of answer choices Mammals are more closely related to amphibians than amphibians are to snakes Mammals and snakes are more closely related to each other than either are to amphibians Crocodiles are more closely related to lizards than they are to birds Birds are more closely related to mammals than they are to crocodilesarrow_forward
- Which statement is true? Fossils can provide information about when life forms existed. Fossils cannot provide information about life cycles and behaviors. Fossils cannot provide information about relatedness of life forms. Fossils can provide information about the entire evolutionary process of life forms.arrow_forwardIn vertebrate evolution, which of the following evolved most recently? Amniotic egg Jaw Feathers Limbsarrow_forwardA bird, from a modern phylogenetic systematic perspective, is properly classified as a member of all of the following except Group of answer choices Archosaur Gnathostome Amniote Synapsidarrow_forward
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