Why is the study of biogeography an important tool in explaining how species have evolved? It shows us the relationship between a species' environment, and how they have evolved It shows us how the DNA has changed from one generation to the next It shows us how the bone structure of organisms has changed over time It shows us how old the Earth is

Why is the study of biogeography an important tool in explaining how species have evolved? It shows us the relationship between a species' environment, and how they have evolved It shows us how the DNA has changed from one generation to the next It shows us how the bone structure of organisms has changed over time It shows us how old the Earth is

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter11: Evidence Of Evolution

Section: Chapter Questions

Problem 1CT

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WRITE ABOUT A THEME: Organization You have seenmany examples of how form fits function at all levels of thebiological hierarchy. However, we can imagine forms thatwould function better than some forms actually found innature. For example, if the wings of a bird were not formedfrom its forelimbs, such a hypothetical bird could fly yet alsohold objects with its forelimbs. In a short essay (100–150words), use the concept of “evolution as tinkering” to explainwhy there are limits to the functionality of forms in nature.
Why is the study of biogeography an important tool in explaining how species have evolved? * It shows us the relationship between a species' environment, and how they have evolved It shows us how the DNA has changed from one generation to the next It shows us how the bone structure of organisms has changed over time It shows us how old the Earth is Sign out US Lenovo ce %23 24 4. 5 7 08 9. backspace %D tab e y a d f g. k C V. alt alt ctrl
Figure 12.8 Which animals in this figure belong to a clade that includes animals with hair? Which evolved first: hair or the amniotic egg?
You have now studied three different types of anatomical structures. Homologous structures show individual variations on a common anatomical theme. These are seen in organisms that are closely related. 1. Give an example of a homologous structure from this activity: Analogous structures have very different anatomies but similar functions. These are seen in organismsthat are not necessarily closely related but live in similar environments and have similar adaptations. 2. Give an example of an analogous structure from this activity: Vestigial structures are anatomical remnants that were important in the organism's ancestors but are nolonger used in the same way. 3. Give an example of a vestigial structure from this activity:
Imagine that you have the DNA sequences fromthe intron of a gene in three species called A, B,and C. Species A and B are most closely related,while C is more distantly related. The sequencesof A and B differ by 18 base pairs, A and C differby 26 base pairs, and B and C differ by 28 basepairs. Fossils show that species A and B divergedabout 1.2 Mya, but there is no fossil evidence asto when the most recent common ancestor ofall three species lived. Use the genetic data toestimate that date. What assumptions are youmaking to get this estimate?
What is a vestigial structure? * A feature inherited from ancestors that has lots its original function A feature that we have in common with other species A feature that shows what our descendants will look like A type of bone found in snakes -> Cc esc %23 21 3. 6. tab n m
What is NOT a product of evolution? O Adaptations O The great chain of being O Vestigial organs O Biodiversity
What must be TRUE of any organ described as vestigial? It need be neither homologous nor analogous to some feature in an ancestor. O It must be analogous to some feature in an ancestor. O It must be homologous to some feature in an ancestor. OIt must be both homologous and analogous to some feature in an ancestor.
1 What are adaptations? * descent with modification from a common ancestor rocks containing fossils inherited characteristics of organisms that enhance their survival geologic changes over time
Which phenomenon describes individuals that do not share a common ancestor? O Convergent Evolution O Divergent Evolution Homologous Structures O Adaptation
The video game “Spore” invites players to design creatures and guidethem through “five stages of evolution.” Search the Internet forinformation about “Spore”; describe how evolution in this game issimilar to, and different from, the evolution of life on Earth.
Homologous structures are evidence that O That the animals probably share a common ancestor O That all animals probably came from each other O That all animals probably share the exact same DNA O That all the animals are unrlated