EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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Chapter 34, Problem 3CQ
Summary Introduction
To determine: Whether birds are considered to be living dinosaurs.
Introduction: The birds were evolved from reptiles, and this has been proved by the discovery of the fossils of various flying dinosaurs like Archaeopteryx, and the molecular studies done on the genetic material predicting similarities and differences in genetic pattern. Although birds have developed from reptiles, some differences separate these groups from each other.
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Developmental Biology - Embryology
Many scientists use what an organism looks like as an
embryo, or embryology, as evidence for evolution. The
embryos of most vertebrates look very similar and have similar structures. For example, fish, bird, rabbit, and human embryos are similar in appearance in early stages. They all have gill slits and a tail with muscles to move it. Later as the embryos develop, they become less and less similar.
What does the study of embryology show when comparing most vertebrates?
n.
Scientists have found one new fossil that is similar to Archaeopteryx. It is only the second fossil of its kind. It shows an animal that had a long-feathered tail and small teeth, like non-avian dinosaurs. But the animal also had flight feathers and wings, like modern birds. The fossil also shows a fused clavicle bone, which confirms the relationship between birds and dinosaurs because they are the only two groups with this characteristic.
What is true about this scenario?
It shows evidence of evolution.
It shows evidence of widespread expression.
It shows evidence of climate change.
It shows evidence of causation.
A principle of biology is that all species (past and present) arerelated by an evolutionary history. Are birds living dinosaurs?
Chapter 34 Solutions
EBK BIOLOGY
Ch. 34.1 - Prob. 1CCCh. 34.2 - Core Skill: Connections Are fish a monophyletic...Ch. 34.2 - What features distinguish ray- finned fishes from...Ch. 34.2 - Prob. 2CCCh. 34.3 - What were the advantages to animals of moving onto...Ch. 34.3 - What was the purpose of the study conducted by...Ch. 34.3 - Prob. 2EQCh. 34.3 - CoreSKILL Summarize the results of the...Ch. 34.3 - Prob. 1BCCh. 34.3 - Prob. 2CC
Ch. 34.4 - Prob. 1CCCh. 34.4 - Prob. 2CCCh. 34.4 - Core Skill: Connections Look ahead to Figure...Ch. 34.4 - Prob. 3CCCh. 34.5 - Prob. 1BCCh. 34.5 - Prob. 1CCCh. 34 - Which of the following is not a defining...Ch. 34 - Prob. 2TYCh. 34 - Prob. 3TYCh. 34 - Which clade does not include frogs? a. vertebrates...Ch. 34 - Prob. 5TYCh. 34 - Prob. 6TYCh. 34 - Prob. 7TYCh. 34 - Which of the following is not a distinguishing...Ch. 34 - Prob. 9TYCh. 34 - Prob. 10TYCh. 34 - Prob. 1CQCh. 34 - Prob. 2CQCh. 34 - Prob. 3CQCh. 34 - By what means can vertebrates move?Ch. 34 - Prob. 2COQ
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- Which is the only wrong statement? Group of answer choices small mammals and non-avian dinosaurs co-existed some non-avian dinosaurs invented flight non-avian dinosaurs were a very short-lived group birds and large, slow-moving dinosaurs co-existed birds are currently living avian dinosaursarrow_forwardPick two organisms from the cladogram below and make a claim about the evolutionary relationship between these organisms. Support your claim using evidence from the lesson and scientific reasoning about evolutionary relationships. Ray-finned fish Rodents Sharks Amphibians Primates & rabbits Crocodiles Birds Hair Eggs with shell Amniotic egg Four limbs Bony skeleton Vertebrae Image Source a relationship betwwen a shark and bird is a bony skeleton amitotic egg and four limbsarrow_forwardAnswer the following questions about this phylogenetic tree. What animal represents the out group in this tree and why? What is the derived characteristic of the birds? What is the shared characteristic of 3 to 6? Which number represents the common ancestor of Ostriches and Hawks?arrow_forward
- Discuss: How old are the oldest camel fossils shown? How has the skull changed over time? How have the teeth changed over time? How have the leg bones changed over time? Table 15.1 Fossils are used by scientists to understand how camels evolved. Table 15.1 Camel Evolution Age Paleocene 65 million years ago Eocene 54 million years ago Organism Skull and teeth Limb bones Oligocene 33 million years ago Miocene 23 million years ago Presentarrow_forwardMatch the following: Homologous Structure flippers of dolphins (mammals) and wings of penguins (birds) Vestigial Structure using energy from the sun to create tissues Producers evidence of past life Analogous Structure opposable thumb in humans and other primates…arrow_forwardExplain how a cladistic classification for the vertebrates produces important regroupings of the traditional vertebrate taxa (refer to Figure 23.2). Why are Agnatha and Reptilia, as traditionally recognized, inconsistent with cladistic principles?arrow_forward
- What is some evidence from phylogenetictree of hollowed bones and tufted feathersarrow_forwardSome people state that the dinosaurs have not “gone extinct,” they are with us today. What evidence can be used to support this statement?arrow_forwardBest on the phylogenetic tree shown here, which organisms are most closely related to dinosaurs and birds?arrow_forward
- What is the DNA analysis and fossil records of the animal aye-ayearrow_forwardwhy does pattern of organization of animals portray evolutionary trnds but do not depict evolutionary sequence?arrow_forwardWhich statement is true? Fossils can provide information about when life forms existed. Fossils cannot provide information about life cycles and behaviors. Fossils cannot provide information about relatedness of life forms. Fossils can provide information about the entire evolutionary process of life forms.arrow_forward
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