3. Shown below is the dental formula and digestive tract anatomy of three mammalian species(A, B, and C). What kind of diet would you expect each species to have? Support youranswers with what you can infer from the dental formula and what you can see in thediagram. Broadly speaking, what accounts for the differences?Species A3/3, 1/1, 4/4, 3/3པར『ན་cm 30Species B4/3, 1/1, 2/2, 4/4cm 10Species C0/4, 0/0,3/3, 3/3020

Species ADental Formula: 3/3, 1/1, 4/4, 3/3Digestive Tract: Moderately long, simple stomach, no…

Answered: 3. Shown below is the dental formula…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter24: Systematics And Phylogenetics: Revealing The Tree Of Life

Section: Chapter Questions

Problem 12TYK

See similar textbooks

Similar questions

The phylogenetic tree for vertebrates depicted below was constructed from sequence data for two rRNA mitochondrial genes (12S and 16S). How do the results of this analysis compare with the phylogenetic trees in Figures 32.10 and 32.24? Identify the major clades of vertebrates on the tree depicted below. Source: R. Zardoya and A. Meyer. 1998. Complete mitochondrial genome suggests diapsid affinities of turtles. Proceedings of the National Academy of Sciences, USA 95:1422614231. Copyright 1998 National Academy of Sciences, U.S.A.
Bruce Ames and his colleagues have pointed out that although detailed toxicological analysis has been conducted on synthetic chemicals, almost no information is available about the mutagenic or carcinogenic effects of the toxins produced by plants as a natural defense against fungi, insects, and animal predators. Tens of thousands of such compounds have been discovered, and he estimates that in the United States adults eat about 1.5 g of these compounds each daylevels that are approximately 10,000 times higher than those of the synthetic pesticides present in the diet. For example, cabbage contains 49 natural pesticides and metabolites, and only a few of these have been tested for their carcinogenic and mutagenic effects. a. With the introduction of new foods into the U.S. diet over the last 200 years (mangoes, kiwi fruit, tomatoes, and so forth), has there been enough time for humans to develop resistance to the mutagenic effects of the toxins present in those foods? b. The natural pesticides present in plants constitute more than 99% of the toxins we eat. Should diet planning, especially for vegetarians, take into account the doses of toxins present in the diet?
When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that: a. similarities and differences in phenotypic characters reflectunderlying genetic similarities and differences. b. the animals use exactly the same traits to identify appropriatemates. c. differences in these traits caused speciation in the past. d. the adaptive value of these traits can be explained. e. variations in these traits are produced by environmentaleffects during development.
INTERPRET DATA Which of the primates in Figure 18-18 is the most distantly related to humans? Explain your answer. Figure 18-18 Differences in DNA nucleotide sequences as evidence of evolutionary relationships Comparing the same gene in different organisms provides a window into evolution. Here the differences in the non-protein-coding region of the -globin gene are compared between humans and other primates. Evolutionary biologists are rapidly expanding such studies from comparing one or several genes to comparing entire genomes.
INTERPRET DATA Imagine that you discover a new animal in a rain forest. It has an elongated, segmented body with bristles, and it has no obvious head. Where would youplace this animal in the accompanying cladogram? Support your decision. Look at the more detailed cladogram inFigure 30-6a (in Chapter 30). What additional characteristicswould help you place your animal in this cladogram? Explainyour decision-making process.
The phylogenetic tree for 12 cat species (Felidae) reproduced at right was assembled from molecular sequence data. Which species is the domestic cats closest relative? Which clade is the sister taxon to tigers? Are bobcats more closely related to cougars or to ocelots? Source: From Warren E. Johnson et al. 2006. The late Miocene radiation of modern Felidae: A genetic assessment. Science 311:7377.
In a cladistic analysis, a systematist groups together organisms that share: derived homologous traits. derived homoplastic traits. ancestral homologous traits. ancestral homoplastic traits. all of the above.
Cite specific examples of how data from molecular systematics have confirmed or modified traditional animal phylogeny and identify the three major clades of bilateral animals.
Discuss Concepts Many city-dwellers have noted that the density of cockroaches in apartment kitchens appears to vary with the habits of the occupants: people who wrap food carefully and clean their kitchen frequently tend to have fewer arthropod roommates than those who leave food on kitchen counters and clean less often. Interpret these observations from the viewpoint of a population ecologist.
Which of the following human traits is not a shared characteristic of primates? Hip structure supporting bipedalism Detection and processing of three-color vision Nails at the end of each digit Enlarged brain area associated with vision, and reduced area associated with smell
To construct a phylogenetic tree by applying the principles of parsimony to molecular sequence data, one would: a. start by making assumptions about variations in the rates atwhich different DNA segments evolve. b. group together organisms that share the largest number ofancestral sequences. c. group together organisms that share derived sequences, matching the groups to those defined by morphologicalcharacters. d. group together organisms that share derived sequences, minimizing the number of hypothesized evolutionarychanges. e. identify derived sequences by studying the embryology of theorganisms.
Which of the following pairs of structures are homoplastic? a. the wing skeleton of a bird and the wing skeleton of a bat b. thewingofabirdandthewingofafly c. theeyeofafishandtheeyeofahuman d. the bones in the foot of a duck and the bones in the foot of a chicken e. the toes on the foot of a lizard and the toes on the foot of a human

SEE MORE QUESTIONS

Recommended textbooks for you

Biology: The Dynamic Science (MindTap Course List)

Biology

ISBN:

9781305389892

Author:

Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:

Cengage Learning

Biology Today and Tomorrow without Physiology (Mi…

Biology

ISBN:

9781305117396

Author:

Cecie Starr, Christine Evers, Lisa Starr

Publisher:

Cengage Learning

Biology: The Unity and Diversity of Life (MindTap…

Biology

ISBN:

9781305073951

Author:

Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:

Cengage Learning

Biology: The Dynamic Science (MindTap Course List)

Biology

ISBN:

9781305389892

Author:

Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:

Cengage Learning

Biology Today and Tomorrow without Physiology (Mi…

Biology

ISBN:

9781305117396

Author:

Cecie Starr, Christine Evers, Lisa Starr

Publisher:

Cengage Learning

Biology: The Unity and Diversity of Life (MindTap…

Biology

ISBN:

9781305073951

Author:

Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:

Cengage Learning

Human Heredity: Principles and Issues (MindTap Co…

Biology

ISBN:

9781305251052

Author:

Michael Cummings

Publisher:

Cengage Learning

Principles Of Radiographic Imaging: An Art And A …

Health & Nutrition

ISBN:

9781337711067

Author:

Richard R. Carlton, Arlene M. Adler, Vesna Balac

Publisher:

Cengage Learning

Biology (MindTap Course List)

Biology

ISBN:

9781337392938

Author:

Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS