Concept explainers
Evolution is based on which of the following concepts? (a) organisms share a common origin (b) over time, organisms have diverged from a common ancestor (c) an animal’s body parts can change over its lifetime, and these acquired changes are passed to the next generation (d) a and b (e) a, b, and c
Introduction: Evolution is a process that has been occurred since the origin of life. Species have evolved themselves according to their needs with their changing environment. To explain these changes taking place in different species of plants and animals, different theories have been put forward from time to time. The most accepted theory in modern science is that of Charles Darwin.
Answer to Problem 1TYU
Correct answer: During evolution, organisms have emerged from some common ancestors and with the course of time, due to many factors, have diverged from each other to form new species. Hence, the correct answer is option (d).
Explanation of Solution
Reason for the correct answer:
Evolution is a process of continuous improvement in a population according to their need in their natural habitats. Studies have shown genetic similarities between distant living species indicating that their genome has some common origin. Molecular studies have shown ancestral similarities in different species.
Option (d) is given as, “a and b”
Different species have emerged from one or a few common origins and with changing natural environment, have diverged themselves from the ancestral species to form completely new species. Hence, the correct answer is option (d).
Reasons for incorrect answers:
Option (a) is given as, “organisms share a common origin”.
Different species share common origin during the course of evolution, but many other factors also play a major role in evolution to take place. Hence, option (a) is incorrect.
Option (b) is given as, “over time, organisms have diverged from a common ancestor”.
Organisms evolving from common ancestors have adapted according to their changing environment. Along with common ancestry, other factors have also played crucial role for evolution to take place. Hence, option (b) is incorrect.
Option (c) is given as, “an animal’s body parts can change over its lifetime, and these acquired changes are passed on to the next generation”.
During the evolutionary course, body parts of animals do not change, but the organism adapts itself according to its environment and it does not transfer to next generation until there is change in gametes. Hence, option (c) is incorrect.
Option (e) is given as, “a, b, and, c”.
Evolution is not caused by a change in body parts of an organism. Hence, option (e) is incorrect.
Hence, the options (a), (b), (c), and (e) are incorrect.
During evolution, organisms have originated from some common ancestors and with the course of time, due to many factors, have diverged from common ancestor to form new species.
Want to see more full solutions like this?
Chapter 18 Solutions
BIOLOGY >PRINT UPGRADE<
- Briefly explain the 6 domain of interprofessional collaboration: Role clarification, Team functioning, Interprofessional communication, Patient/client/family/community-centered care, Interprofessional conflict resolution, Collaborative leadership. Provide a specific negative events that nursing student would observe in a clinical setting for each domain.arrow_forwardwhat is an intermittent water course and what kind of fish habitat it would providearrow_forwardwhy are native freshwater mussels are an important part of great lakes ecosystemarrow_forward
- what morphological features differentiate the lamprey species and other species in the great lakesarrow_forwardThere are a wide range of therapeutic applications available as options for patients. Medical professionals should be aware of these applications so they can make informed recommendations to patients. To gain a better understanding of some therapeutic applications and how they are related to RNA and mRNA, research long non-coding RNA. Respond to the following in a minimum of 175 words: What is lncRNA and what does it do? How does IncRNA differ from mRNA? What are some therapeutic applications associated with lncRNA? Think about possible future uses of this application. What are the advantages and disadvantages of this application and its continued use?arrow_forwardfour fish or mussel species that are native to the great lakesarrow_forward
- There are a wide range of therapeutic applications available as options for patients. Medical professionals should be aware of these applications so they can make informed recommendations to patients. To gain a better understanding of some therapeutic applications and how they are related to RNA and mRNA, research long non-coding RNA. Respond to the following in a minimum of 175 words: What is lncRNA and what does it do? How does IncRNA differ from mRNA? What are some therapeutic applications associated with lncRNA? Think about possible future uses of this application. What are the advantages and disadvantages of this application and its continued use?arrow_forwardfour physial characteristics of a fish or a mussel that would help you identify it to a speciesarrow_forwarddescribe what you would do in this situation, you are working ona. river and it will take 20 minutes by boat to get back to the field truck, you are 1 hour from finishing the field work on the last day of field trip. you hear thunder int he dsitnace, what did you do?arrow_forward
- unu grow because auxin is still produced in the tip to Another of Boysen and Jensen's experiments included the use of mica, explain why one of the shoots was able to show phototropism and the other was not. Mica Wafer Ligh c. They then t but this time permeable n shoot. Why phototropis Light Mica Wafer Coleoptile tips Tips removed: agar Explain why the shoo direction after the ag the cut shoot, even tarrow_forwardDiscussion entries must be at least 250 words to fulfill the assignment requirements. You must complete your entry before you will be able to see the responses of other students. Responses to other students are encouraged but not required. Grading for discussion entries will be based on application of course concepts, proper grammar, and correct punctuation. Read one the attached article and explore the Human Development Index (https://hdr.undp.org/data-center/human-development-index#/indicies/HDI). In your opinion, is the Human Development Index a good measure of the well- being of the people of a nation? Are the items measured in the HDI valid and relevant in the modern global economy? How are they related to the political economy of a nation? The attached articles propose some alternative measures of well-being. In your opinion, are there other measures of well-being that might be better alternatives to the items in the current HDI?arrow_forwardA patient visits her doctor with symptoms typical of a bladder infection. She is immediately prescribed an 800 mgdose of antibiotic (bioavailability = 1/2, t½ = 12 h). The corresponding plasma concentration of drug is found to be 96 micrograms/ml. What is the volume of distribution of this drug? Please round to the nearest liter.arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College