All the following statements support the theory that similar organisms have a common ancestor except Select one: a. similar DNA patterns occur in closely related organisms b. organisms sharing a habitat tend to develop similar behaviours c. transitional fossils show links between groups of organisms d. groups of organisms display similar embryonic development

All the following statements support the theory that similar organisms have a common ancestor except Select one: a. similar DNA patterns occur in closely related organisms b. organisms sharing a habitat tend to develop similar behaviours c. transitional fossils show links between groups of organisms d. groups of organisms display similar embryonic development

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter23: Principles Of Evolution

Section: Chapter Questions

Problem 5SQ

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You have now studied three different types of anatomical structures. Homologous structures show individual variations on a common anatomical theme. These are seen in organisms that are closely related. 1. Give an example of a homologous structure from this activity: Analogous structures have very different anatomies but similar functions. These are seen in organismsthat are not necessarily closely related but live in similar environments and have similar adaptations. 2. Give an example of an analogous structure from this activity: Vestigial structures are anatomical remnants that were important in the organism's ancestors but are nolonger used in the same way. 3. Give an example of a vestigial structure from this activity:
Which of the following is most likely to be true of two modern organisms that have a distant evolutionary relationship? a. They should have fewer homologous traits in common than two more closely related organisms b. They should have very similar chromosomes Oc. They live in very different habitats d. They should be members of the same genus e. They should have a relatively recent common ancestor*
The Theory of Evolution contends that species have changed through time and are related to one another through descent from a common ancestor. Which of the following prediction follow from the Theory of Evolution? A. The fossil record should contain intermediate forms between major taxonomic groups B. The oldest rock strata are much more likely to contain complex fossils than simple fossils. C. Fossils are always a representation of species that are currently alive (ie extant) even if they have not been detected yet as living on earth at the present time D. All species are unigue and originated independently from each other
Part 1: Use this image to describe the relationship between H, F. and D, including how closely they are related to each other, and determine the most recent common ancestor for these species. Part 2: Using the above image, estimate how long ago the common ancestor for H, F, and D lived. Part 3: Of species H, F, and D, which have gone extinct without producing any evolutionary descendants? Provide evidence to support your answer.
Which of the following is TRUE about a phylogenetic tree? It provides a drawing the reflects the proven relationships between living and extinct species. b It provides a hypothetical model of the relationships between extinct species. c It provides a hypothetical model of the relationships between living and extinct species. d It a diagram used by scientists that provides a model of evolutionary relationships without the need for scientific data.
Which of the following statements about the fossil record is true? a. The fossil record is a complete accounting of life on earth b. The fossil record is unbiased in the fossils that are found c. The fossil record is evenly sampled across all of life's history on earth d. There are certain biases in the fossil record
A branch points on a phylogenetic tree is where scientists that study systematics place a groups organisms that share the formation of a new character. b organisms that have not yet diverged. c the emergence of a new genus. d the root of a phylogeny.
A major source of evidence for evolution is to be found in the comparative anatomy of organisms. Features that look different but have similar structural origin are calleda. homologous structures.b. analogous structures.c. vestigial structures.d. convergent structures
Phylogeny refers to the evolutionary descent of taxa. It refers to the relationship between ancestors and descendants and relationships among descendant taxa. It shows the lineage of taxa which can be summarized in a branching diagram called a phylogenetic tree.a. express some basic evolutionary relationships among groups of microorganisms, plants, and animals; b. illustrate the relationship of organisms with their environment; and c. analyze environmental factors contributing to biodiversity richness and loss
Which of the following most likely demonstrates that classification is the basis of evolutionary relatedness? A. Organisms that share similar characteristics are impliedly understood to have common ancestors, thus having an evolutionary relationship. B. Classification is to organize organisms into groups based on their differences and similarities and evolutionary history, so as evolution changes, classification will also change C. Classification based on evolutionary relatedness always infer that all organisms that evolved similarly shares the same history. D. Homologous structures among organisms depicts the same evolutionary history or paths.
Members of two different species possess a similar-looking structure that they use in a similar way to perform about the same function. Which of the following would suggest that the relationship more likely represents homology instead of convergent evolution? a. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identicalb. The two species live at great distance from each otherc. The structures in adult members of both species are similar in sized. Both species are well adapted to their respective environments
Which of the following is false concerning the evidence for evolution? Vestigial structures are a reduced structure or organ that was once useful to an ancestral species. B The more closely related two species are, the fewer DNA base differences there is. In radiometric dating, fossils with more stable elements are younger than fossils with radioactive elements. D Species that share a common ancestry will have homologous structures.