An unrooted tree containing ten unrelated species can become rooted by addinga descendant group related to two of the species.an unrelated outgroup.O a distantly related outgroup.O a descendant related to only one of the species.

A descendant group related to two of the species: This option is IncorrectDescendants are part of…

Answered: An unrooted tree containing ten…

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter12: Diversity Of Life

Section: Chapter Questions

Problem 12RQ: A monophyletic group is a ______. a. phylogenetic tree b. shared derived trait c. character state d....

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Two species of fish had recently undergone sympatric speciation. The males of each species had a different coloring through which females could identify and choose a partner from her own species. After some time, pollution made the lake so cloudy it was hard for females to distinguish colors. What might take place in this situation?
A clade is _________. a. defined by a derived trait b. a monophyletic group c. a hypothesis d. all of the above
Which assumption of cladistics is stated incorrectly? a. Living things are related by descent from a common ancestor. b. Speciation can produce one, two, or three new species. c. Traits change from one state to another. d. The polarity of a character state change can be determined.
What kind of trait is important to cladistics? a. shared derived traits b. shared ancestral traits c. analogous traits d. parsimonious traits
The reproductive isolating mechanism in which two closely related species live in the same geographic area but reproduce at different times is (a) temporal isolation (b) behavioral isolation (c) mechanical isolation (d) gametic isolation (e) hybrid inviability
Describe maximum parsimony.
Figure 1.7 Taxonomic classification of five species that are related at different levels. Each species has been assigned to ever more inclusive groups, or taxa: in this case, from genus to domain. From the left, Joaquim Gaspar; kymkemp.com; Sylvie Bouchard/Shutterstock.com; Courtesy of Melissa S. Green, www.flickr.com/photos/henkimaa; Grodana Sarkotic. Figure It Out: Which of the plants shown here are in the same order?
The difference between sympatric and parapatric speciation is ___. a. parapatric speciation occurs only in worms b. sympatric speciation requires a barrier to gene flow c. the extent of overlap in range d. reproductive isolation does not occur
In evolutionary trees, each node represents an __________. a. single lineage c. divergence b. extinction d. adaptive radiation.
How does outgroup comparison facilitate the identification of ancestral and derived character states?
In which type of rock are you more likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of calcium carbonate sediments c. slate, a volcanic melted and cooled shale d. granite, which forms by crystallization of molten rock below the surface of the Earth
Which situation would most likely lead to allopatric speciation? a. A flood causes the formation of a new lake. b. A storm causes several large trees to fall down. c. A mutation causes a new trait to develop. d. An injury causes an organism to seek out a new food source.

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An unrooted tree containing ten unrelated species can become rooted by adding a descendant group related to two of the species. an unrelated outgroup. O a distantly related outgroup. O a descendant related to only one of the species.