EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Textbook Question
Chapter 23, Problem 1U
Overall similarity of
a. due to convergent evolution.
b. because of variation in rates of evolutionary change of different kinds of characters.
c. due to homoplasy.
d. All of the choices are correct.
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Students have asked these similar questions
Which of the following is false?
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The color of a fruit fly's eyes is a trait.
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The instructions for producing a trait are found in a gene that controls the physical expression of that trait.
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The trait is influenced by the gene, independent of the environment.
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By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced.
Birds have wings, as do butterflies and mosquitos. However, they do not share a recent, common ancestor. Therefore, the possesion of wings in this scenario is known as?
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Chapter 23 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 23.1 - Prob. 1LOCh. 23.1 - Prob. 2LOCh. 23.2 - Prob. 1LOCh. 23.2 - Prob. 2LOCh. 23.2 - Demonstrate how a cladogram is constructed.Ch. 23.3 - Explain the taxonomic classification system.Ch. 23.3 - Prob. 2LOCh. 23.3 - Prob. 3LOCh. 23.4 - Prob. 1LOCh. 23.4 - Prob. 2LO
Ch. 23.4 - Prob. 3LOCh. 23.5 - Prob. 1LOCh. 23 - Construct a data matrix like the one in figure...Ch. 23 - Prob. 1IQCh. 23 - Prob. 2IQCh. 23 - Prob. 3IQCh. 23 - Prob. 4IQCh. 23 - Overall similarity of phenotypes may not always...Ch. 23 - a. is based on overall similarity of phenotypes....Ch. 23 - The principle of parsimony a. helps evolutionary...Ch. 23 - Parsimony suggests that parental care in birds,...Ch. 23 - The forelimb of a bird and the forelimb of a...Ch. 23 - In order to determine polarity for different...Ch. 23 - In a paraphyletic group a. all species are more...Ch. 23 - A paraphyletic group includes a. an ancestor and...Ch. 23 - Prob. 9UCh. 23 - A taxonomic group that contains species that have...Ch. 23 - Rapid rates of character change relative to the...Ch. 23 - Species recognized by the phylogenetic species...Ch. 23 - Prob. 1SCh. 23 - Identifying outgroups is a central component of...Ch. 23 - As noted in your reading, cladistics is a widely...Ch. 23 - Across many species of limpets, loss of larval...Ch. 23 - Birds, pterosaurs (a type of flying reptile that...Ch. 23 - AID:1825 | 10/04/2018 6. In what sense does the...
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- Which of the following pairs of structures is least likely to represent homology? Group of answer choices A. The mitochondria of a plant and those of an animal. B. The wings of a bird and those of an insect. C. The hemoglobin of a baboon and that of a gorilla. D. The brain of a cat and that of a dog. E. The wings of a bat and the arms of a human.arrow_forwardYou are studying the evolution of a trait in two species of snakes where both species can flatten themselves so that they can glide from tree to tree. You know that this trait is not present in the ancestor of all snakes. With this information, is the trait a homology? a. Yes b. No c. Only in one of the species. d. Not enough information to tell.arrow_forwardA. Which term is most relevant to a critical understanding of the fictional portrayal of primates such as Curious George and King Kong? a. homology b. homoplasy c. anthropomorphism d. cladomorphism B. Which of the following is true of primates? a. Some lemur species are able to interbreed despite different numbers of chromosomes. b. Lorises and galagos are extremely shy daytime species that are seldom seen in the wild. c. Tarsiers are a very diverse primate group that belongs to the suborder of Strepsirrhines. d. Today, lemurs are found only on the island of Madagascar and extreme South Africa.arrow_forward
- You are reading a scientific paper regarding the relationships of the anatomical and behavioral characteristics of chimpanzees and their implications for early hominid evolution. With the emphasis on anatomical and behavioral characteristics, this implies that the researchers are relying on A. Traditional classifications of chimpanzees and humans B. Nonevolutionary classifications of chimpanzees and humans C. An incorrect classification of human ancestors D. Cladistic classifications of chimpanzees and humansarrow_forwardHomologous traits are BEST characterized by which of the following? O A They are traits that are derived from common ancestors. O B They are similar traits that evolved independently, but function similarly. O C They are traits that share a similar form among different organisms. O D They are traits which serve the same function in different species. E None of these describes homologous traits.arrow_forwardWhich of the following are required for evolution by natural selection to occure. A.The phenotype of the trait is determined genetically. B. D. Variation in the phenotype of a trait. C. The phenotype for the trait is carried on the x chromosome. Certain phenotypes for the trait are more fit than others.arrow_forward
- 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.arrow_forwardA. Regarding modern Homo sapiens' origins, which of the following theories most closely matches this statement: one group of Homo erectus evolved into modern humans, and spread out of Africa, replacing other erectus populations along the way. a. African hybridization and replacement model b. Regional continuity model c. Replacement model d. H. antecessor origin theoryarrow_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_forward
- The presence or absence of a trait of interest in a lineage is said to be an uninformative character for a phylogenetic reconstruction when the number of changes for that trait - A. occurs only in the outgroup and in one ingroup species. B. is the same for any hypothetical tree. C. is always different for any hypothetical tree. D. occurs only in the outgroup but not in any ingroup species.arrow_forwardThe 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_forwardWhat consequences does horizontal gene transfer pose for evolutionary biologists? a. It can pose difficulty in the reconstruction of phylogenetic trees, because it can obscure phylogenetic relationships. b. It can pose physiological problems in some organisms, making it very hard to study them. c. It can pose difficulty in breeding between different individuals of the same species. d. Because it is transfer of genes between the same species, it can make individuals look very more similar than they actually are. e. All of the above.arrow_forward
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