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Biological Science Study Set 3

Biology

Quiz 22 :

Evolution by Natural Selection

Quiz 22 :

Evolution by Natural Selection

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A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed, no matter how often he applies triazine. Which of these actions is most likely to solve the farmer's problem?
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Answer:

B

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Which of the following statements describes a vestigial trait?
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D

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After the drought of 1977, researchers hypothesized that on Daphne Major, medium ground finches with large, deep beaks survived better than those with smaller beaks because they could more easily crack and eat the tough Tribulus cistoides fruits. If this hypothesis is true, what would you expect to observe if a population of these medium ground finches colonizes a nearby island where T. cistoides is the primary available food in all yea Assume that 1) even the survivors of the 1977 drought sometimes had difficulty cracking the tough T. cistoides fr and would eat other seeds when offered a choice, and 2) food availability is the primary limit on finch fitness on this new island.
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Answer:

C

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Radiometric dating is a technique used to determine the age of rocks. Geologists have used this technique to determine that
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Why was Darwin and Wallace's theory of evolution by natural selection revolutionary?
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Your text discusses the evolution of antibiotic- resistant M. tuberculosis bacteria in a patient. Researchers discovered that the strain of M. tuberculosis taken from the dead patient has a point mutation in the rpoB gene that codes for part of the RNA polymerase enzyme. This mutant form of RNA polymerase does not normally function as well as the more common form, but a commonly used antibiotic called rifampin does not affect the mutant rpoB. A researcher places M. tuberculosis isolated from the patient a year before death no rpoB mutation) in cell cultures with M. tuberculosis isolated from the dead patient with rpoB mutation). Half the cell cultures contain just standard nutrients, and the other cell cultures contain rifampin in addition to the standard nutrients. After many cell generations, the researcher finds that
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The same basic internal organs kidneys, stomach, heart, lungs) are found in frogs, birds, snakes. and rodents. This is primarily an example of
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Which of the following statements is an example of typological thinking?
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Gill pouches in chick, human, and house- cat embryos are an example of
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Researchers have found fossils of Eocene horse species in Colorado. Deeper deposits contain smaller species, and more recent deposits contain larger species. How does this observation support the theory of evolution?
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Explain how one of the following supports the idea that species change through time: artificial selection, extinction, transitional forms, vestigial traits, or antibiotic resistance.
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Which of these conditions are always true of populations evolving due to natural selection? Condition 1: The population must vary in traits that are heritable. Condition 2: Some heritable traits must increase reproductive success. Condition 3: Individuals pass on all traits they acquire during their lifetime.
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Why did Darwin argue that evidence of extinction supports the theory of evolution?
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You sequence the genes that code for an important glycolytic enzyme in a moth, a mushroom, a worm, and an alga, and find a high degree of sequence similarity among these distantly related species. This is an example of
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A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these explanations best describes this observation?
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If you say that Squirrel A has greater biological fitness than Squirrel B, you mean that the animal
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Who proposed that organisms could be organized into a great chain of being?
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Which of the following is the best modern definition of evolution?
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Evolutionary theory predicts that species are related, not independent. Four of the following examples provide support for this prediction, but one is irrelevant. Which one of these examples does not support the claim that species are related?
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Which of the following scientists argued that variation among individuals allows evolution to occur?
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