Question 10 A. Plants andB. Species of plants and animals that were similar but not identicalC. The exact same species of plants and animals10. Which of the following components of Darwin's theory of evolution by natural selection states thatindividuals in a population differ from one another?A. HeritabilityB. OverproductionC. Reproductive advantageD. Variation11. During his voyage aboard the HMS Beagle, Darwin noticed that the finches found on the different islands ofthe Galápagos could be described as being which of the following?A. Completely different than the mainland finchesB. Similar, but they varied by nesting site, beak size, and eating habitsCThe avart esma se the mainland finche

According to Darwin's theory of evolution postulates are - Overproduction Struggle for…

10. Which of the following components of Darwin's theory of evolution by natural selection states that individuals in a population differ from one another? A. Heritability B. Overproduction C. Reproductive advantage D. Variation the different islands of

10. Which of the following components of Darwin's theory of evolution by natural selection states that individuals in a population differ from one another? A. Heritability B. Overproduction C. Reproductive advantage D. Variation the different islands of

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter1: Introduction To Biological Concepts And Research

Section: Chapter Questions

Problem 8TYK: Which of the following is not a component of Darwins theory as he understood it? a. Some individuals...

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1) Darwin's studies of Galapagos finches are well known in the study of evolution. These studies have been instrumental in helping us understand how new species evolved from pre-existing species. Which statement is true about the speciation of the Galapagos finches? A) The finches evolved traits to help them survive in different environments. B) The finches had different traits that influenced the environment in which they chose to live. C) Genetic variation occurred amongst the finches, giving some a genetic advantage in a changing environment, allowing them to better survive. D) Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed. Not graded
1) Darwin's studies of Galapagos finches are well known in the study of evolution. These studies have been instrumental in helping us understand how new species evolved from pre-existing species. Which statement is true about the speciation of the Galapagos finches? A) The finches evolved traits to help them survive in different environments. B) The finches had different traits that influenced the environment in which they chose to live. C) Genetic variation occurred amongst the finches, giving some a genetic advantage in a changing environment, allowing them to better survive. D) Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed.
In the bighorn sheep population of North America, what would happen if all of the large-bodied, large-horned males were hunted, leaving only small-bodied, small-horned sheep? a)Males could no longer protect females from predators, so eventually all of the sheep would be eaten by predators. b)There would be no phenotypic variation in the population of sheep, and natural selection could not lead to males with larger horns in the future. C)The size of horns would no longer be a heritable traits, and would males would not pass this trait to their offspring. d)Males would begin to use their horns for other behaviors, such as hunting prey or being better competitors.
a.)What effect does directional selection have on genetic variation? b.)A population has an allele that encodes for ear size, large ear being dominant and small ear being recessive. The frequency of the dominant allele is .6. What percentage of the population has big ears?
There is a population of cats and 16% of the cats this population show a recessive trait. a. What is the frequency of the recessive allele? b. What is the frequency of the dominant genotype? c. What is the frequency of cats with the heterozygous genotype?
Which statement is correct, based on current evolutionary theory? a. Selection will favor alleles only if they are good for the species. b. Selection will favor alleles only if, on average, they increase the reproductive success of individuals who have them. c. In small populations genetic drift can be more effective than natural selection in building adaptations. d. Selection sometimes favors alleles that systematically lower the reproductive success of the individuals who have them. e. Two of the above are correct.
What is neutral evolution? A. Neutral evolution does not exist. B. When certain genes are present or absent in populations due to natural selection (they are advantageous or disadvantageous). C. When certain genes are present or absent in populations regardless of selection (they are not advantageous or disadvantageous). D. When certain genes are present or absent in populations due to sexual selection (they are selected for by the opposite sex).
According 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) individuals will vary depending on geography and climate B) variation exists because not all genes will be expressed C) variation among individuals may arise as a result of mutations in the genetic code D) variation exists because different individuals will have different access to food and other resources
2. You have sampled a population in which you know that the percentage of the homozygous recessive genotype (a) is 26%. Using that 26%, calculate the following: A. The frequency of the "aa" genotype. B. The frequency of the "a" allele. C. The frequency of the "A" allele. D. The frequencies of the genotypes "AA" and "Aa." E. The frequencies of the two possible phenotypes if "A" is completely dominant over "a
1. Animals that possess homologous characteristics Group of answer choices a. by chance had the same mutations in the past b. share a common ancestor that also had the characteristic c. are less related than if the characteristics were homoplastic d. evolved the characteristics independently e. are not related 2. In a population of Scrub Jays, the frequency of a recessive allele that results in short tail feathers in homozygous individuals is 0.5. When you survey the population for tail phenotypes, you find that 70 percent of adult scrub jays have short tail feathers. What is most likely true based on these numbers? Group of answer choices a.Short tail feathers appear to be neither helpful nor harmful in this population b.The population is Hardy-Weinberg equilibrium for this trait c. The short tail feathers are likely maladaptive and are allowing predators to capture the scrub-jays d. Having short tail feathers in this population is in…
You 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.
INTERPRET DATA In a population at genetic equilibrium, the frequency of the dominant phenotype is 0.96. What are the frequencies of the dominant (A) and recessive (a) alleles, and what are the expected frequencies of the AA, Aa, and aa genotypes?