Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 20, Problem 5TYK
Which of the following statements about evolutionary studies is not true?
a. Biologists study the products of evolution to understand the processes causing it.
b. Biologists design molecular experiments to examine evolutionary processes operating over short time periods.
c. Biologists study the inheritance of characteristics that a parent acquired during its lifetime.
d. Biologists study variation in homologous structures among related organisms.
e. Biologists examine why a huge variety of species may inhabit a small island cluster.
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Which of the following is NOT true of biological evolution?
a.
It always involves genetic changes
b.
it always involves groups of individuals
c.
it requires the existence of genetic variation within a population
d.
it can include non-genetic changes in an organism, if the organism is complex enough
Imagine that some lizards from both islands are brought to a laboratory and lizards from each population are separately bred for a generation. The offspring resemble their parents (i.e. they look like lizards from their home island). Does this support or contradict the idea that evolution has occurred?
Group of answer choices
a. support because it implies that a genetic change has occurred
b. contradict because the lizards were removed from the islands
c. support because the phenotype matches the environment
d. contradict because the environment is different in the lab
e. support because it is a major change in phenotype
What is a Homology?
A) When an anatomic feature is shared among organisms and their descendants
B) When two organisms appear the same
C) When convergent evolution produces similar phenotypes
Chapter 20 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 20.1 - Why did the existence of vestigial structures make...Ch. 20.1 - What were Lamarcks contributions to an...Ch. 20.1 - How do the concepts of gradualism and...Ch. 20.2 - What observations that Darwin made on his...Ch. 20.2 - How did Darwins understanding of artificial...Ch. 20.2 - What were the four great intellectual triumphs of...Ch. 20.3 - What two problems slowed the acceptance of Darwins...Ch. 20.3 - What is the difference between microevolution and...Ch. 20.3 - What types of data provide evidence that evolution...Ch. 20 - The father of taxonomy is: Charles Darwin. Charles...
Ch. 20 - The wings of birds, the legs of pigs, and the...Ch. 20 - Which of the following ideas proposed by Lamarck...Ch. 20 - Prob. 4TYKCh. 20 - Which of the following statements about...Ch. 20 - Which of the following ideas is not included in...Ch. 20 - Which of the following could be an example of...Ch. 20 - Medical advances now allow many people who suffer...Ch. 20 - Prob. 9TYKCh. 20 - Which of the following statements is not...Ch. 20 - Which of the following does not contribute to the...Ch. 20 - Prob. 12TYKCh. 20 - Design an experiment to test Lamarcks hypothesis...Ch. 20 - Prob. 14TYKCh. 20 - For centuries, animal breeders have used...
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- 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_forwardWhat does the term evolution mean? A. The characteristics of species become more complex over time. B. The strongest individuals produce the most offspring. C. The characteristics of an individual change through the course of its life, in response to natural selection. D. The characteristics of populations change through time.arrow_forwardWhich of the following conclusions are MOST likely to be supported by genetic evidence? A. Some modern-day organisms did not exist in the past. B. Some organisms found in the fossil record do not currently exist. C. Environmental change affected the fitness of individuals differently based on their traits. D. Some disease-causing traits may remain in a population because their alleles provide an advantage to heterozygotes.arrow_forward
- Why 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_forwarda) Based on this tree is the chicken, mouse, human, or hamster most closely related to the bat? b) Which of the following statements is NOT true? -chicken, dogs, and humans share a common ancestor -mice are more closely related to bats than they are to bears -macaques are equally related to humans and chimpanzees c) Which of the following statements is NOT true? - bears are equally related to tarsiers and humans - tarsiers are more related to dogs than they are to bats - chickens are more closely related to bats than they are to chimpanzees - tigers, dogs, and bears form a monophyletic grouparrow_forwardWhich of the following statements is not true about the concept of natural selection? Group of answer choices A-Geographical isolation contributes to the formation of new species as individuals begin to adapt to different environments B-Natural selection explains the increase in the yield of kernels per corn plant over the last several thousand years C-Infers that later generations may be distinct from ancestral ones, or a new species can appear D-Selective pressures cause distinct species to develop E-Suggests that over long periods of geological time, successful variations accumulate in a populationarrow_forward
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