WHAT IS LIFE W/ACHIEVE ACCESS >B<
5th Edition
ISBN: 9781319488086
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 10, Problem 9MC
Summary Introduction
Introduction:
Similarities at the genetic level indicate that two species have a common ancestor.
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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.
What problems does horizontal gene transfer cause for evolutionary biologists?
a. It can make the reconstruction of phylogenetic trees difficult because it can obscure phylogenetic relationships.
b. It can cause physiological problems in some organisms, making it hard to study them.
c. It can make breeding between different individuals of the same species difficult.
d. Because it is the transfer of genes between the same species, it can make individuals look more similar than they actually are.
e. All of the above.
1. Which is a more definite characteristic to show relatedness of two organisms?
A. Similarity in development
B. Similarity in courting behavior
2. Why do organisms with close biochemical similarities show stronger evolutionary
relationships?
A. They have varied and different ancestry.
B. They have a common ancestor and have the same kind of proteins.
C. They possess same vestigial structure that made their evolutionary.
D. They have similar patterns during their early stages of development.
C. Similarity in structure
D. Similarity in genomic DNA
Chapter 10 Solutions
WHAT IS LIFE W/ACHIEVE ACCESS >B<
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statement about the outcome of the evolution of a new species through hybridization is false? a.The new species may have traits that allow it to inhibit environments different from both parental species. b.The new species is always an intermediate of the two parental species c.The new species may have greater genetic diversity and greater trait diversity than the parental species. d.None of the above What are the two ways of looking into evolution in detail? a.Micro frequency change and ascent with modification b.Genotypic and phenotypic modification c.DNA frequency change and inheritance modification d.Allele frequency change and descent with modification Natural selection increases the frequencies of advantageous alleles and decreases deleterious alleles' frequencies. What are the three categories of natural selection depending on the favored traits? a.Directive, selective and native b.Indicative, normative and fixative c.Directional, stabilizing and…arrow_forwardThe principle of parsimony a. helps evolutionary biologists distinguish among competing phylogenetic hypotheses. b. does not require that the polarity of traits be determined. c. is a way to avoid having to use outgroups in a phylogenetic analysis. d. cannot be applied to molecular traits.arrow_forwarda. What did Darwin's travels reveal to him about the number and variety of living species? b. How did tortoises and birds differ among the islands of the Galapagos? c. What is evolution? Why is referred to as a theory? d. Darwin found fossils of many organisms that were different from any living species. How would this finding has affecting his understanding of lifes diversity?arrow_forward
- The challenge in using sequence data to estimate the evolutionary tree for all living things is to find a gene that shows recognizable sequence similarities even between highly distantly related species . Which of the following should NOT be among the features of this gene? A. The gene subject to strong diversifying selection. B. It is present in all organisms. C. It encodes a product whose function is essential. D. The function of the gene must have remained the same in all organisms.arrow_forwardA good “phylogenetic” species is one that is A. The smallest diagnosable cluster of organisms within which there is a pattern of ancestry and descent B. The most inclusive population of individuals having the potential for phenotypic cohesion through intrinsic cohesion mechanisms. C. Morphologically distinctive from other groups of organisms D. An actually or potentially interbreeding group that is reproductively isolated from other such groups.arrow_forwardDerived characters are traits: A. that are more complicated than ancestral characters B. that characterize the last common ancestor of a particular collection of species. C. that have evolved after the last common ancestor of a particulan collection of species. D. that are less well suited to the environment than ancestral characters.arrow_forward
- Phylogenetic trees are constructed based on Group of answer choices a. shared ancestral characters b. vestigial characters c. homoplastic characters d. cartoon characters e. shared derived characters f. shady charactersarrow_forwardScientists conducted research to examine the evolutionary relationship between 10 bird species and an alligator species. They isolated the amounts of the dinucleotides cytosine and guanine found in the genomic DNA of each species. The graph shows the traditional taxonomic groups of the bird species used and the average percentage of dinucleotides in their DNA. Which of the following statements is best supported by the DNA evidence? A - Gamebirds likely evolved after non-perching birds. B - A bird’s ability to fly may be linked to its dinucleotide percentage. C - The dinucleotide percentages demonstrate coevolution of all species. D - Non-perching birds are more similar genetically to alligators than flightless birds.arrow_forwardResearchers have found fossils of Eocene horse species in Colorado. Deeper deposits contain smaller species, and more recent deposits contain larger species. How does this observation support the theory of evolution? A. It provides evidence that species change over time. B. It does not support the theory of evolution. C. It shows that all species are related to each other. D. It proves that environments have changed over time. E. It suggests that species are unchanging and of recent origin.arrow_forward
- A phylogenetic tree is different from a cladogram in that ... Group of answer choices A: it shows that all species are not related to a common ancestor, but each has a distinct archetype. B: it represents the time scale of evolution, including where extinct species fit in. C: it uses an outgroup to compare a small group of species that exhibit similar traits D: it is not based on genetic or morphological evidence.arrow_forward6) One could apply the phylogenetic species concept by a.comparing the morphology of two organisms. b.tracing the common ancestry of two organisms. c.determining the overall similarity in the ecological niche of two organisms. d.mating two organisms to see if viable offspring result.arrow_forwardIn order to determine polarity for different states of a character a. there must be a fossil record of the groups in question. b. genetic sequence data must be available. c. an appropriate name for the taxonomic group must be selected. d. an outgroup must be identified.arrow_forward
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Phylogenetic Mysteries: Crash Course Zoology #12; Author: CrashCourse;https://www.youtube.com/watch?v=cVaw7nF72Aw;License: Standard youtube license