LaunchPad for Biology: How Life Works (Six-Months Online)
3rd Edition
ISBN: 9781319305727
Author: Morris, JAMES
Publisher: Macmillan Higher Education
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Chapter 21.1, Problem 3SAQ
Summary Introduction
The process that involves in the generation of new and unique forms of life is referred to as
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Describe the biological species concept into details
The biological species concept defines a species by its morphology. In other words all members of the same species look alike? True or false?
Use the DNA-DNA hybridization data from species A, B, C, D, and E showing the % difference in
DNA between each species to answer the question that follows:
D
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Species
B
A
4
3
3
2
X
4
3
3
B
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2
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1
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D
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1
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4
4
23. Which of the following phylogenetic trees correctly illustrates the relationships between species A, B,
C, D, and E? (assume that the letters run in sequence A-B-C-D-E at the ends of the branches)
a.
b.
C.
ABCDE
ABCDE
A B C D E
V NY
VV
ABCDE
30+30+30+30)
Chapter 21 Solutions
LaunchPad for Biology: How Life Works (Six-Months Online)
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- Give detailed conclusion on morphological species conceptarrow_forwardDefine a taxon.give some examples of texa at different hierarchial levels?arrow_forwardBased on the character matrix in the picture, draw a Venn diagram. Start with the character that is shared by all the taxa on the outside. Inside each box, write the taxa that have only that set of characters. Next, make a cladogram based on the matrix and Venn diagram.arrow_forward
- Species 1 is described as 2n = 8 and has chromosome composition BBDDEEHH. Species 2 is described as 2n = 10 and has chromosome composition NNPPSSXXZZ. Select the best answer to classify the organism below based on its chromosome composition. Note that each letter represents a chromosome and that the organism below is either an individual from one of the species above or is derived from one or both species above. Organism: BBDEEHH Select one: Oa. Haploid O b. Diploid C. Double Trisomic O d. Autotriploid e. Double Monosomic f. Monosomic O g. Allotriploid Oh. Autotetraploid Oi. Allotetraploid Nullisomic Ok. Trisomicarrow_forwardRefer to the table below. What happens to the number of total possible trees as the number of taxa increases?arrow_forwardAt the end of the 19th century, taxonomists adopted the goal of developing a natural system of classification. In a natural system, which kinds of organisms are classified together?arrow_forward
- Which of the following is true regarding the way we define clades with characters? Select one: a. Autapomorphies are good characters to use because they describe every lineage of the clade and no other lineages b. Plesiomorphies are good characters to use because they describe every lineage of the clade and no other lineages c. Synapomorphies are good characters to use because they describe every lineage of the clade and no other lineages Please give me the correct answer quickly I will give you upvotearrow_forwardClosely related species are grouped together into (singular, ). By the way, what is the singular of “species”?arrow_forwardIn tabular form all five kingdom are explain briefly?arrow_forward
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