Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 25.3, Problem 4TC
Summary Introduction
To discuss:
The repeated evolution of flightlessness among birds.
Introduction:
The birds have the ability to fly. The flight offers some great advantages to birds over other animals, such as searching for food, escaping from predators, and many more.
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Chapter 25 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 25.1 - describe the features that distinguish chordates...Ch. 25.2 - name and describe the chordates that are not...Ch. 25.2 - name and describe the craniates that are not...Ch. 25.2 - describe the key adaptations of vertebrates?Ch. 25.2 - Prob. 1CSCCh. 25.3 - Most sharks avoid humans, but large sharks of some...Ch. 25.3 - With regard to water regulation (maintaining the...Ch. 25.3 - Prob. 2TCCh. 25.3 - Consider the graph shown in Figure E25-2. Imagine...Ch. 25.3 - Prob. 4TC
Ch. 25.3 - describe the key features of lampreys,...Ch. 25.3 - name and describe the main subgroups included...Ch. 25.3 - Prob. 1CSRCh. 25 - The two groups of mammals with the largest number...Ch. 25 - Prob. 2MCCh. 25 - Prob. 3MCCh. 25 - Prob. 4MCCh. 25 - Prob. 5MCCh. 25 - Prob. 1FIBCh. 25 - Prob. 2FIBCh. 25 - Prob. 3FIBCh. 25 - Prob. 4FIBCh. 25 - Prob. 5FIBCh. 25 - Briefly describe each of the following...Ch. 25 - Prob. 2RQCh. 25 - List four distinguishing features of chordates.Ch. 25 - Prob. 4RQCh. 25 - List the adaptations that distinguish reptiles...Ch. 25 - Prob. 6RQCh. 25 - Prob. 7RQCh. 25 - Prob. 1ACCh. 25 - Prob. 2AC
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- Kettlewell's experiment is included in most biology texts as an example of evolution How do we know that the moths evolved?arrow_forward1) in the future there may be more than one species of ostrich ? True or false 2)There is evidence of gene flow in the cassowary ? True or falsearrow_forwardWhat is migration? Why do animals show this phenomenon?arrow_forward
- The special adaptations of birds contribute to two essentials for flight: more power and less weight. Explain how each of the following contributes to one or both of these two essentials: feathers, skeleton, muscle distribution, digestive system, circulatory system, respiratory system, excretory system, reproductive system.arrow_forwardWhich of the following is probably the best explanation for the fact that Antarctic penguins cannot fly, although there is evidence that millions of years ago their ancestors could do so? Group of answer choices Penguins live on land and feed in the water; therefore they have no need to fly. The Antarctic home of penguins is flat and barren; therefore there is no place to fly. Ancestral penguins did not use their wings for long periods of time; therefore today’s penguins have only tiny, nonfunctional wings. Ancestral penguins without large wings were better able to swim and feed in the water; therefore they passed their genes for shorter wings structure onto their offspring.arrow_forwardHuman embryos have tails which become tail bones before birth. Tails also appear in fish, reptiles, amphibians, birds, and mammals Humans also have hair and produce milk to nourish the young, which is unique to mammals. What does this indicate? a close evolutionary connection between humans and many other mammals a very distant evolutionary connection between humans and many other mammals a very distant evolutionary connection between humans and many other reptiles a close evolutionary connection between humans and many other reptilesarrow_forward
- A principle of biology is that all species (past and present) arerelated by an evolutionary history. Are birds living dinosaurs?arrow_forwardWhat conclusion can be drawn from embryological development? Insect and bird wings are similar in function but not in structure. Paleontologists have used fossils to trace the evolution of the modern camel. Many organisms have structures with no apparent function found during embryo development. The presence of gill slits and tails in early vertebrate embryos shows that they may share a common ancestor.arrow_forwardDarwin theorized that all four of these finches evolved from one ancestor. Why do you think their beaks evolved?arrow_forward
- What are the characteristics of all birds? Why do we assume they were a branch of reptilia?arrow_forwardWhat is wrong with this statement: Birds evolved lighter bones to allowed them to fly and take advantage of open niches. All of the choices are true; none are false. It implies that the variation in the anatomy of birds did not come first, but rather the need did. It implies that there is an intent to evolution. It implies that adaptations evolve out of a need.arrow_forwardBirds and butterflies have wings they use for flying. The wings of butterflies are made of semitransparent, tough scales. Bird wings are covered with feathers. The wings of birds and butterflies did not evolve from a common ancestor that had wings. Instead, they have evolved as a result of similar environmental pressures. Which statement best explains the evolutionary relationship of birds and butterflies? Bird and butterfly wings are a result of divergent evolution because birds and butterflies did not evolve from a winged common ancestor. Bird and butterfly wings are a result of convergent evolution because birds and butterflies evolved from a winged common ancestor. Bird and butterfly wings are analogous structures because they have similar functions, are structurally different, and are a result of convergent evolution. Bird and butterfly wings are homologous structures because they have similar functions, are structurally the same, and are a result of divergent evolution.arrow_forward
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