Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 25, Problem 4SYK
Summary Introduction
To describe: The genetic changes that may lead to the evolution of new morphological forms.
Introduction: Evo-devo indicates the combination of developmental and evolutionary biology. It describes that the major morphological changes can occur between species, when there is a slight variation in the developmental genes. Evolutionary change in the developmental rates is called heterochrony and the spatial arrangement of body parts are controlled by homeotic genes.
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Chapter 25 Solutions
Biology - Study Guide
Ch. 25 - Why do we say that, for life to have begun, the...Ch. 25 - Prob. 2IQCh. 25 - Prob. 3IQCh. 25 - Prob. 4IQCh. 25 - Prob. 5IQCh. 25 - a. Mammals originated 180 mya but did not change...Ch. 25 - Prob. 7IQCh. 25 - a. According to the model of species selection,...Ch. 25 - Prob. 1SYKCh. 25 - Label the eons, eras, and key events shown on the...
Ch. 25 - Describe three major processes that have...Ch. 25 - Prob. 4SYKCh. 25 - The primitive atmosphere of Earth may have favored...Ch. 25 - Prob. 2TYKCh. 25 - Prob. 3TYKCh. 25 - The half-life of carbon-14 is 5,730 years. A...Ch. 25 - Prob. 5TYKCh. 25 - Prob. 6TYKCh. 25 - Prob. 7TYKCh. 25 - Look back at the Geologic Record in Table 25.1....Ch. 25 - Prob. 9TYKCh. 25 - According to the endosymbiont theory, a. the first...Ch. 25 - Prob. 11TYKCh. 25 - Prob. 12TYKCh. 25 - Prob. 13TYKCh. 25 - Prob. 14TYKCh. 25 - Prob. 15TYKCh. 25 - Prob. 16TYKCh. 25 - Prob. 17TYKCh. 25 - What is meant by the concept of species selection?...
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- Which major groupings of animals defined on the basis of morphological characters have been confirmed by molecular sequence studies?arrow_forwardWhat is a phylogeny a description of? a. mutations b. DNA c. evolutionary history d. organisms on Eartharrow_forwardHow are shared ancestral characters and shared derived characters different? How is the concept of homology related to these concepts?arrow_forward
- Why should we care "Molecular origins of rapid and continuous morphological evolution" research study?arrow_forwardThe Manx cat is in the domestic cat group, and the bobcat is in the lynx group. Both have a trait in common: short, stubby tails. According to the phylogeny, which is the most parsimonious explanation for this common trait in these two species of cat?arrow_forwardWhy is it likely that Hox genes have played a major rolein the evolution of novel morphological forms?arrow_forward
- In what ways can an evolutionary trend develop during the history of a genus or a family?arrow_forwardWhat role do mutations play in the fragment presented above? How is the mechanism of natural selection represented in this situation? How does the reduction in body armor represent an adaptation?arrow_forwardWhy don't shared ancestral characters provide evidence for relationships between organisms within a taxon that has those traits?arrow_forward
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