EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Chapter 35, Problem 2S
Some people state that the dinosaurs have not “gone extinct,” they are with us today. What evidence can be used to support this statement?
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Some people state that the dinosaurs have not “gone extinct,” they are with us today. What evidence can be used to support this statement?
Because of selective forces, the dinosaurs were superbly adapted to their environments. After the dinosaurs became extinct, the small mammals that had been relatively unimportant animals in the background flourished and evolved into many new types, including the line that led to human beings. It is unlikely that these new types would have ever evolved had not the dinosaurs disappeared. If the extinction of the dinosaurs was caused by an extraterrestrial impact, did it matter how well they were adapted to their environment? What does this suggest about the starting cause in the evolutionary success of these new types of mammals?
What caused the extinction of the dinosaurs?
Chapter 35 Solutions
EBK BIOLOGY
Ch. 35 - Which of the following structures is not a...Ch. 35 - Which of the following statements regarding all...Ch. 35 - In the figure, item A is the ______ and item B is...Ch. 35 - Prob. 4UCh. 35 - The ____ of the bony fish evolved to counter the...Ch. 35 - Why was the evolution of the pulmonary veins...Ch. 35 - Which of the following groups lacks a...Ch. 35 - All of the following are characteristics of...Ch. 35 - Which of the following evolutionary adaptations...Ch. 35 - The reason that birds and crocodilians both build...
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- (1) What is the most common way for a dead organism to avoid decomposition? (2) Why do researchers look for fossils in places that are now dry and barren instead of other places like forests or grasslands? (3) What kind of dating from the lecture or textbook would be the best method for finding the number of years ago when a volcanic rock was formed? (4) Why is the pelvis of a biped shorter and wider than the pelvis of a quadruped? (5) Does the overall shape of Lucy’s pelvis resemble the human pelvis or the chimpanzee pelvis more? Do not think of the size, but compare the outlines of each bone. This is Lucy's skelton below.arrow_forwardHOW MANY YEARS AGO DID THE DINOSAURS BECOME EXTINCT?arrow_forwardA scientist digs in an undisturbed field and finds a leg bone of dinosaur A about 6 meters below the surface. She keeps digging and finds a jawbone of dinosaur B about 15 meters below the surface. Based on this information, which is the most likely conclusion? Dinosaur A lived before dinosaur B. Dinosaur B lived before dinosaur A. Both dinosaurs are from the same geologic period.arrow_forward
- How do you think researchers and paleontologist determine where fossils of hominins are buried? answer must be at least 300 words in paragraph formatarrow_forwardBirds are supposed to be the dinosaurs' closest relatives. List and explain five reasons why the Aves have been able to adapt (morphological traits) and survive in the ever-changing world we live into this day.arrow_forwardWhat kind of fossils were formed out of dinosaur remains and activities? Why do you say so? (Give three)arrow_forward
- Did dinosaurs and humans ever exist at the same time?arrow_forwardDiscuss: 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_forwardFossils show that dinosaurs originated between 200 and 250 million years ago. Would you expect the geographic distribution of early dinosaur fossils to be on multiple continents or on a single continent? Explain. Hint: refer to continental drift in your explanation.arrow_forward
- What is plausible evidence supporting the hypothesis that birds evolved from dinosaurs? Please choose the best option. a) Dinosaurs and birds are both predatory.b) Fossilized transitional forms are discovered that possess features of birds and dinosaurs yet are difficult to classify into either group.c) The wing structure of a bird is similar to a dinosaur.d) Bird fossils can be found alongside dinosaur fossils.arrow_forwardNeanderthals are recognizably human but have distinctive facial features and a stocky build that were evolutionary adaptations to cold, dry environments. They shared Europe for 10,000 years with Homo sapiens. Today they no longer exist. Beyond these facts the fate of Neanderthals has generated much debate. Why did Neanderthals become extinct? State at least four major factors to explain their fate.arrow_forwardby studying the limbs and fossils of different animals, such as a horse leg and a human leg, scientists have noticed that there are similarities in their bone structures. this is evidence that their bone structures and limbs may have evolved in similar ways. The scenario is describing a relationship known as causation . The scenario is describing intermediate fossils . The scenario is describing a relationship known as correlation . The scenario is describing transitional fossils .arrow_forward
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