Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 22, Problem 1CQ
Evolution that results in adaptation is rooted in two phenomena:
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Background: In class we did a project about m and m’s and there ability to evolve and natural selection. (Yes I know they can’t actually evolve it was just used as a example in class) however I can’t figure out this question.
Occasionally a mutant may occur and produce a candy that is misshapen or Pointier or flatter than the rest. Often this proves to be a weakness, but a rare mutation may confer extra M&M durability. Other mutations in M&Ms could occur ( like ones that result in a new color). A mutant un you population represents a new _________.
What goes in the blank
Natural selection and artificial selection or selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. Changes in genetic traits have occurred over generations through both natural selection and selective breeding although the occur through different means. What characterizes only artificial selection? Choose all that apply.
A) chickens that lay larger eggs are favored
B) selection increases the chances of surviving
C) selection make a species stronger and fit for survival
D) selection favors the desired characters in the new organisms
Most of the time, evolution seems to do a pretty good job of turning out living organisms with adaptations that help them survive and thrive. But sometimes it doesn’t entirely seem to make sense, or intriguing at the very least. In other words, evolution can fall well short of perfection. Add to the images above at least 2 examples of such "mistakes of evolution." Briefly explain how evolution screwed up in each case.
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Chapter 22 Solutions
Biology
Ch. 22.1 - Prob. 1CCCh. 22.1 - Overview of Evolution Experimental Questions What...Ch. 22.1 - Overview of Evolution Experimental Questions...Ch. 22.1 - Overview of Evolution Experimental Questions...Ch. 22.2 - Prob. 1CSCh. 22.2 - Prob. 1CCCh. 22.2 - Prob. 2CCCh. 22.2 - Prob. 3CCCh. 22.3 - The Molecular Processes Concept Check: Why do...Ch. 22.3 - Prob. 1CS
Ch. 22.3 - Prob. 2CCCh. 22 - Prob. 1TYCh. 22 - Lamarcks vision of evolution differed from Darwins...Ch. 22 - Which of the following scientists influenced...Ch. 22 - Prob. 4TYCh. 22 - Vestigial structures are anatomical structures a....Ch. 22 - Which of the following is an example of a...Ch. 22 - Prob. 7TYCh. 22 - Prob. 8TYCh. 22 - Prob. 9TYCh. 22 - Prob. 10TYCh. 22 - Evolution that results in adaptation is rooted in...Ch. 22 - What is convergent evolution? How does it support...Ch. 22 - Prob. 3CQCh. 22 - Prob. 1COQCh. 22 - Prob. 2COQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Evolutionary biologists often say that evolution “selects for outcomes” not for the particular genetic changes that lead to that adaptive outcome. Given that perspective, is it surprising that different gene mutations might be involved in the evolution of the same trait (such as light skin or adaptation to living in high mountains)? Why or why not?arrow_forwardwhich sequence correctly summarizes how evolution by natural selection works? The arrows can be read as "influence" or "influences" Question 75 options: genes→ fitness → proteins→ phenotype→ selection → evolution genes→ proteins→ genotype→ selection→ fitness → evolution phenotype → fitness → selection → proteins→ genes → evolution proteins→ genes→ phenotype → fitness → selection → evolution genes → proteins→ phenotype→ fitness → selection → evolutionarrow_forwardWhat is an adaptation in the context of evolution? A heritable trait that was favored by natural selection. choose one of the following. A random genetic mutation that causes a new trait in a population. The ability of an individual to adjust to their environment as it changes..arrow_forward
- The dog breed West Highland Terrier is a product of artificial selection. Give a brief description of the breed and its desired traits. What wild ancestor did it come from? Was it produced with selective breeding or genetic engineering (i.e. genetically modified)? What are the benefits of artificial selection in this case? Are there potential negative consequences?arrow_forwardDiscuss the significance of mutations and explain the role of the environment in the evolutionary process. (Hint: Consider Lenski's study and what is demonstrated. Do not re-tell Lenski’s study)arrow_forwardDiscuss the two principles on which evolution is based.arrow_forward
- Which of the following factors are required in order for evolution to occur? a. Individuals within a population must be receptive to change and collectively determine which trait(s) is/are to be modified in subsequent generations b. Genetic variation within a population must exist or have the potential to arise, and shifts in allelic frequencies will take place or have the potential to take place c. Individuals within a population should be able to reproduce effectively (i.e., without barriers to reproduction existing) d. Both A & B e. Both B & Carrow_forwardThe following illustrations represent two different patterns of evolution. Briefly discuss the differences in these two patterns with regard to how evolutionary change (on the x axis) occurs with respect to time (on the y axis).arrow_forwardDo you think the human race is continuing to evolve in a Darwinian, genetic sense? Are the genes of our species changing? Do not just write "yes" or "no," but explain why you think so. In addition, include in your explanation of how the mechanisms of evolution, such as natural selection, would be at play.arrow_forward
- Skin color in humans is an example of an evolutionary trade-off: a situation where a trait that is an advantage in one context is a disadvantage in a different context. Darker skin protects DNA from damage due to ultraviolet radiation (an advantage) but makes it harder for the body to produce vitamin D (a disadvantage). Based on what you’ve learned, which of the following describe other examples of evolutionary trade-offs? Select all that apply.arrow_forwardThe image below shows how the Pokemon Charmeleon evolves into Charizard over generations. Pokemon fight battles in order to evolve into stronger Pokemon. When Charmeleon (on the left) wins enough battles, they evolve into Charizard shown on the right. If they don't defeat other pokemon they will stay in the form on the left. Explain why this fictional process is not a realistic representation of evolution. Refer to commonly held misconceptions as well as criteria for evolution by natural selection in your answer.arrow_forwardBlack lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock pocket mouse had a 10% advantage, about how long would it have taken for nearly all of them to have dark-colored fur? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 10,000 years. 1000 years. 100 years. It depends on how fast new mutations occur. This cannot be estimated because evolution is random. Fullscreenarrow_forward
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