Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Chapter 1, Problem 16TYPSS
Summary Introduction
Introduction:
Human immunodeficiency virus (HIV) causes a sexually transmitted disease that cannot be cured but only prevented. According to natural selection, the traits which provides benefit to organism in terms of survival and reproduction are selected by nature and passed on to next generation.
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Students have asked these similar questions
Why are humans so genetically similar within our species?
A. Humans are not very genetically similar to one another.
B. Because humans evolved in one location (Africa) and we have existed as a species for very long time.
C. Because humans evolved in multiple locations around the world at different times.
D. Because humans evolved in one location (Africa) and we haven't existed as a species for very long.
Which of the following statements is inaccurate?
Multiple choice (one answer is correct)
a.The genetic variation that occurs in a population from mutation is non-random
b.Natural selection is the only mechanism that consistently causes adaptive evolution
c.Evidence demonstrates that whales evolved from land-dwelling organisms
d.Natural selection acts on populations
Why are humans so genetically similar within our species?
A.
Because humans evolved in multiple locations around the world at different times.
B.
Because humans evolved in one location (Africa) and we have existed as a species for very long time.
C.
Because humans evolved in one location (Africa) and we haven't existed as a species for very long.
D.
Humans are not very genetically similar to one another.
Chapter 1 Solutions
Biological Science
Ch. 1 - Anton van Leeuwenhoek made an important...Ch. 1 - What does it mean to say that a characteristic is...Ch. 1 -
6. Could both the food competition hypothesis and...Ch. 1 - What does it mean to say that experimental...Ch. 1 - The term evolution means that _____ change through...Ch. 1 - In biology, to what does the term fitness refer?Ch. 1 - Prob. 7TYUCh. 1 - What did Linnaeus' system of naming organisms...Ch. 1 - Prob. 9TYUCh. 1 - Explain how selection occurs during natural...
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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
- When taking the question, it would appear as: Consider global warming, a continual gradual increase in average temperatures. How might you expect this to affect natural selection? A.environmental changes are unpredictable, and natural selection is a random process, so it is difficult to predict outcome B.species from warmer climates are likely to expand their ranges into higher latitudes C.traits that increase reproductive success under warmer temperatures are likely to increase in frequency in a population D.the stress caused by higher temperatures will increase mutation ratesarrow_forwardWhich question below directly corresponds to whether Lamarck or Darwin are correct about their theories of the mechanisms of evolution? A.) Why don’t the shorter neck giraffes feed on grasses and lower vegetation? B.) How would the shorter necked giraffes in Lamarck’s theory survive to reproduce and pass on the “need” for longer necks if they were unable to reach food? C.) Why won’t the taller necked giraffes in Darwin’s theory provide assistance to the shorter giraffes since they are the same species? D.) Will the smaller giraffes be more adapted to hide from predators since they wouldn’t be visible from greater distances?arrow_forwardWhat is an example of neutral evolution in humans? A. Eye Color B. Humans do not have any traits that undergo neutral evolution C. Skin Color D. Blood Typesarrow_forward
- A ship was caught in a storm and landed on a small island in the middle of the South Pacific. For generations, no one encountered this small colony who, despite the odds, made a thriving settlement on their island. After many years, what characteristics would be unique about this island population? a. The people would look very different from each other, and may have evolved some odd characteristics that aren't seen in other humans. b. The people would look very different from each other, and may exhibit abnormally high occurrences of genetic diseases that are rare in the general human population. c.The people would look very similar to each other, and may exhibit abnormally high occurrences of genetic diseases that are rare in the general human population. d. The people would no longer be considered humans after evolving independently for several generations.arrow_forwardWith regard to biological evolution, which of the following statements is incorrect? Explain why.A. During its lifetime, an animal evolves to become better adaptedto its environment.B. The process of biological evolution has produced species thatare better adapted to their environments.C. When an animal is better adapted to its environment, the process of natural selection makes it more likely that the animalwill reproduce.arrow_forwardYou are studying a species of beetle known as a Flumbodoodle Beetle. The beetle has long spikes on its shell to defend itself from potential predators. You are interested in studying evolution in this beetle. Which of the following studies do you not need to conduct to determine if the long spike trait can evolve by natural selection. a. A study that determines whether beetles with longer spikes survive and reproduce better than beetles with shorter spikes. b. A study that measures the spike length variation across multiple individuals in a population. c. A study where you measure the spike length on the parents and a study where you measure the spike length on the offspring. d. A study that determines whether these spikes on the beetle are also used in mate choice contexts.arrow_forward
- Apply the VIDA table to the evolution of sickle cell disease to justify whether it is an instance of evolution by natural selection. Answer the following questions. Is there variation in this trait in the population? How exactly does it vary? Is the trait at least partly inherited? Is there selection for this trait in a particular environment? (What is the selective pressure? And how does a trait give an advantage or disadvantage in that environment?) What is the evidence that this trait makes organisms better adapted to their environment?arrow_forwardJean-Baptiste Lamarck was one of the first scientists to propose a method for evolutionary change. He suggested that an organism's body would adapt to its surrounding based upon the use or disuse of certain body parts. Why was this a mistaken idea? a As species become distinctly different from each other, so do their body forms, which is a result of their genes changing. b Individuals adapt and change, not populations. c Evolutionary change can only act upon traits that are inheritable, not traits that are acquired through an organism's lifetime. d When an organism migrates to a new environment or the environment it currently lives in changes, the organism must adapt, or it will not survive.arrow_forwardWhy was Jean Baptiste Lamarck wrong about the mechanism of evolution? A. Because giraffes haven't evolved in billions of years. B. Because individuals do not pass on any traits that they acquire during their lifetime. C. Because individuals can change their traits during their lifetime and pass on those traits to their offpsring. D. Because he misunderstood the structure of DNA.arrow_forward
- Which of the following statements about evolution is false?a. Gene mutations alone amount to evolution. b. Genetic drift and gene flow are modern theories of evolution.c. Natural selection contributes to evolution.d. Chimpanzees evolved from a hominoid ancestor.arrow_forwardConsider Lamarck’s idea in a hypothetical situation. For example, you decided that when you have children, you want them to be big ang strong. You decided to go to the gym every day for a year. You did all your exercise routines diligently and you were able to develop really bulky and toned muscles because you believed that your kids would inherit your big impressive muscles. Do you think this would work? Justify your answer using the concepts you have learned from Genetics, as well as Darwin’s concept of evolution.arrow_forwardAccording to Darwin’s model of evolution, evolution can only occur if there is some variation present among the individual members of a population. Which statement best describes the source of this variation among members of a species? A) variation exists because different individuals will have different access to food and other resources B) individuals will vary depending on geography and climate C) variation exists because not all genes will be affected D) variation among individuals may arise as a result of mutations in the genetic codearrow_forward
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