EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Textbook Question
Chapter 26, Problem 4A
During which tunes would you expect that geographic isolation would be particularly important in the evolution of life?
a. Cambrian period
b. End of the Paleozoic era
c. The beginning of the Cenozoic era
d. Both a and c are correct.
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Chapter 26 Solutions
EBK BIOLOGY
Ch. 26 - The Miller-Urey experiment demonstrated that a....Ch. 26 - Plate tectonics can contribute to a. volcanoes and...Ch. 26 - Identify which of the following statements is...Ch. 26 - Which of the following events occurred first in...Ch. 26 - Fossil data indicate that a. life originated 4...Ch. 26 - A global glaciation would be unlikely to occur if...Ch. 26 - Although we do not know how early life arose, the...Ch. 26 - Which bits of evidence would convince you that...Ch. 26 - During which tunes would you expect that...Ch. 26 - The chloroplasts of brown algae a. have a...
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- what key trait of life developed with the emergence of multicellular organism, the third threshold in the evolution of life? a. metabolism b. adaptation c. homeostasis d. reproductionarrow_forwardChoose the best below ? Which of these steps probably occurred first in the chemical andbiological evolution of life? a. The cell membrane of a protobiont formed.b. Formation of the first organic moleculesc. The genetic material was RNA.d. Simple organic monomers formed from inorganic materials.arrow_forwardwhere on the earth did life mostly likely first emerge, where all the ingredients and conditions for life existed? a. volcanic islands b. deep oceanic vents c. tidal pools d. tropical rainforestarrow_forward
- If the evolution of life was placed on a 24 hour clock, when did humans arrive? a. At the 30 minute mark. b. 1 minute into the beginning c. Less than 1 secong to do ( to the end) d. Right at the ver startarrow_forwardwhich statement about macroevolution is true? a. The history of life on Earth follows a general trend toward increasing diversity marked by rare mass extinction events. b. The theory of punctuated equilibrium proposes that most evolutionary changes occur over long periods of time. c. The theory of gradualism proposes that major evolutionary changes happen relatively rapidly and are then followed by long periods of little change. d. All scientific understandings are complete, as scientific investigations have now filled in all remaining gaps.arrow_forwardWhich sentence says true about evolutionary relationship of organisms? * a. DNA evidence shows that the giant pandas are more closely related to raccoons than bears. b. Scientist infer that the species with similar body structure and development patterns inherited many of the same genes from acommon ancestor.a c. Scientist never have to change their hypotheses about species relationships. d. Scientist can compare protein structure to determine how closely two species are related .arrow_forward
- What type of data is primarily used to determine the existence and appearance of early animal species? a. molecular data b. fossil data c. morphological data d. embryological development dataarrow_forwardWhich phylogenetic model proposes that all three domains of life evolved from a pool of primitive prokaryotes? a. tree of life b. web of life c. ring of life d. network modelarrow_forwardScientists find an artifact next to an index fossil. What can they conclude about the unknown age of the artifact? a The artifact is older than the index fossil. b The artifact is younger than the index fossil. c The artifact is approximately the same age as the index fossil. d The artifact's age is not related to that of the index fossil.arrow_forward
- The map below shows how the continents once were connected together (link to bigger map if you need it (Links to an external site.)). Based on the map and biogeography, where would we expect to find animals and fossils that were closely related to animals from Brazil? A. Nigeria B. Russia C. Canada D. Indiaarrow_forwardAbout when did the common ancestor of chimpanzees, humans, gorillas, and orangutans last exist? a. Between 5 and 8 million years ago b. Less than 5 million years ago c. More than 15 million years ago d. Between 10 and 15 million years ago e. Between 8 and 10 million years agoarrow_forwardUsing the phylogeny, which statement best explains the evolutionary relationship of birds and bats? A. C is an example of divergent evolution shows a common ancestor. B. C is an example of convergent evolution does not show a common ancestor. C. A and B are examples of analogous structures derived from a common ancestor. D. A and B are examples of homologous structures that are not derived from a common ancestor.arrow_forward
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