Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 20, Problem 9TYU
FOCUS ON EVOLUTION
Darwin suggested looking at a species' close relatives to learn what its ancestors may have been like. Explain how his suggestion anticipates recent methods, such as phylogenetic bracketing and the use or outgroups in cladistic analysts.
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Charles Darwin’s theory of evolution
Group of answer choices
was based mainly on observations of living species and fossil evidence.
was disproven by fossil evidence.
was initially based on detailed studies of fossils and was later supported by living species.
predicted that fossils, though undiscovered then, would eventually be found.
In your own words, differentiate between a fossil and a trace fossil.
What are the differences and similarities of evolution and natural selection.
. The Process of Evolution by Natural Selection –
Be able to explain the process of evolution by natural selection as it applies to a specific living thing using the outline below:
Natural variations caused by random mutations (adaptations) in DNA exist within populations.
Those with helpful adaptations survive an environmental change (maybe a predator.)
The survivors breed, passing on the inherited mutation (adaptation) to offspring.
The resulting population has more of the successful inherited mutation (adaptation) than the original population.
Phylogenetic Trees
Infer evolutionary relationships of living things by interpreting phylogenetic trees.
Know the divisions of hierarchical classification. (DKPCOFGS)
c. Differentiate between homologous and analogous (caused by convergent evolution) structures
Chapter 20 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 20.1 - Which levels of the classification in Figure 20.3...Ch. 20.1 - Which of the trees shown here depicts an...Ch. 20.1 - Prob. 3CCCh. 20.2 - Decide whether each of the following pairs of...Ch. 20.2 - WHAT IF? Suppose that two species, A and B, have...Ch. 20.3 - Prob. 1CCCh. 20.3 - The most parsimonious tree of evolutionary...Ch. 20.3 - WHAT IF? Draw a phylogenetic tree that includes...Ch. 20.4 - What is a molecular clock? What assumption...Ch. 20.4 - MAKE CONNECTIONS Review Concept 14.5. Then...
Ch. 20.4 - WHAT IF? Suppose a molecular clock dates the...Ch. 20.5 - Why is the kingdom Monera no longer considered a...Ch. 20.5 - Prob. 2CCCh. 20.5 - Prob. 3CCCh. 20 - In a comparison of birds and mammals, the...Ch. 20 - To apply parsimony to constructing a phylogenetic...Ch. 20 - Prob. 4TYUCh. 20 - Prob. 5TYUCh. 20 - If you were using cladistics to build a...Ch. 20 - Prob. 7TYUCh. 20 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a phylogenetic...Ch. 20 - FOCUS ON EVOLUTION Darwin suggested looking at a...Ch. 20 - Prob. 10TYUCh. 20 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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- Choose about the cladogram/phylogenetic tree/evolutionary steps of plants, or animals or chordates - write those 4 steps and what organisms share those characteristicsarrow_forwardRank the characteristics, from one to ten, in terms of when they occurred in evolution ("1" = early in evolution, "10" = late) and their importance in the evolution of organisms. The same ranking may be applied to one or many of the characteristics, depending upon the six animals in your cladogram. Characteristics shared by all of the animals receive a "one.” Those characteristics at the first branch point receive a "two.” Those at more recent branches receive progressively higher numbers. What is the ranking of the characteristics from 1-10?arrow_forwardEVOLUTION LINK Examine the cladogram in Figure 30-6a. Based on the discussion in this chapter, what were some of the types of data that biologists used to determine these phylogenetic relationships?arrow_forward
- Lines of evidence to infer evolutionary relationships: 1. Fossil evidence 2. Homologies ANSWER THE QUESTION. 1. HOW ALL THE ORGANISMS ARE CLASSIFIED BASED ON MULTIPLE LINES OF EVIDENCE? CITE A PARTICULAR GROUP OR SPECIES AS EXAMPLE.arrow_forwardDescribe the evidences to support evolution. Given -Homologous features -Analogous features -Determining relationships from similar features -Molecular biology -Biogeography -Fossil record Please answer all of this, please. Thank youarrow_forwardCharles Darwin and Jean Baptide de Lamarck have different ideas of explaining evolution. Describe how each of them explained the evolution of long necks of giraffes. Justify whose idea is more acceptable in science community.arrow_forward
- A scientist is attempting to a cladogram that shows the evolutionary closeness of three organisms in relation to humansAfter doing DNA analysis, they that the organisms share the following percentages of DNA Organism A and humans share 85% of their DNA Organismn and humans share 80% of their DNA Organism and humans share 90% of their DNA Based on informationwhich order should they go on the cladogram ( related to most related ?arrow_forward20+ years ago, the view of paleontologist and paleoanthropologist on the human evolution is linear/step-ladder where in one specie first then become extinct and then new species came out. Is this true? Explain well and give examples.arrow_forwardLooking at the present, the evolutionary relationships between extant species can be seen in the presence of body parts sharing a common basic design. These structures called (1) descended from a common ancestor. Sometimes, structures which no longer serve their original function are found in modern species. Write the answer for #1arrow_forward
- Question A new phylogenetic tree, based on Carl Woese’s work, was based on the ________ of organisms. genetic characteristics physical traits habitat preferencesarrow_forwardScientists often talk about the evidence for evolution. Using the five types of evidence listed here, explain how each suggests the occurrence of evolution: 1) structural homologies, 2) molecular homologies, 3) developmental homologies, 4) fossils (general) and 5) transition fossils.arrow_forwardGive typing answer with explanation and conclusion to all parts 1. What are the wings of birds and bees are an example of? 1. a homologous character 2. convergent evolution 3. derived characters 4. mosaic evolution 5. ancestral charactersarrow_forward
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Discovering the tree of life | California Academy of Sciences; Author: California Academy of Sciences;https://www.youtube.com/watch?v=AjvLQJ6PIiU;License: Standard Youtube License