1. What is the term describing the process that occurs when a species evolves into a new species with a physical barrier separating populations? a. adaptive radiation C. geographic isolation b.coevolution d. Mutation
Q: 5. Darwin observed all these patterns except for: A. New species replaced extinct species of the…
A: Introduction: Charles Darwin is known for developing the Theory of Evolution in several places…
Q: 2. The origin of several new species of new world monkeys (in South America), from ancestral species…
A: Origin of new species in a particular area for a certain period of time is called the speciation.
Q: 1. Charles Darwin published his book On the Origin of Species in 1859. Of the different types…
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Q: A species is a group of individual organisms that interbreed and produce fertile, viable offspring.…
A: Evolution refers to the change in heritable traits in a population of biological individuals over…
Q: How does migration affect evolution? A. Only individuals that leave a population can evolve. B. The…
A: Answer: Option B- The allelic frequency of the population changes when individuals come into or…
Q: The biological species concept classifies a species based ona. morphological characteristics.b.…
A: The Biological Species Concept defines the species taxon as the group of organisms that can…
Q: What is a cline? a. the slope of a mountain where a population lives b. the degree to which a…
A: The population variation can be determined by genes and environment. The gender determination in…
Q: Gene flow occurs O a. when individuals within a population interbreed. b. as a result of genetic…
A: Gene flow occurs?
Q: 3) A species of crayfish that lives in caves produces eyestalks like its above-ground relatives, but…
A: Due to the adaptation of different environments, different species shows different adaptations that…
Q: Variation among pre-cells was due to ________. A. the bottleneck effect B. natural selection…
A: According to the RNA world hypothesis, a hypothetical structure that is lipid based and could have…
Q: This form of geographic isolation led to what? O A. Speciation O B. Variation O C. Biochemical…
A: Variation is the deviation from the normal. It may occur due to mutational changes occuring within…
Q: mountain range separates a population of gorillas. After many generations, the gorillas on different…
A: Evolution refers to the change in the species characteristics over several generations. Evolution…
Q: a. natural selection b. genetic drift C. gene flow d. random mating 7. is the effect of chance in a…
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Q: As a mechanism of evolution, natural selection can be most closely equated with a. random mating. b.…
A: Introduction:- Natural selection is a mechanism of evolution. Organisms that are more adopted to…
Q: Adaptive radiation a. is the result of enriched uranium used in power plants. b. is the…
A: Step 1 Evolution is an inherent property of living beings. Various forms of life that exist on earth…
Q: 1. Captive breeding programs can reestablish the populations of threatened species in the wild, but…
A: Captive breeding is the process of maintaining plants or animals in controlled environments, such as…
Q: 6. Complete the following table, which illustrates the different mechanisms of evolution. Bottleneck…
A: Genetic drift - if allele frequency change in a population due to sudden change in the surrounding…
Q: A chance event occurs that causes a population to lose some individuals (they died); hence, a loss…
A: BASIC INFORMATION EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…
Q: Mutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population…
A: Mutation brings about changes in the DNA and this brings about the changes in the protein formed by…
Q: Define a. mutation b. natural selection c. founder effect d. bottleneck e. gene flow f. nonrandom…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Charles Darwin proposed that evolution could be explained by the differential reproductive success…
A: To identify: To identify the process of reproductive success of organisms that resulted from their…
Q: An adaptive radiation is________. a. a burst of speciation b. a healthy level of UV radiation c. a…
A: In the field of evolutionary biology, adaptive radiation is defined as a process where the organisms…
Q: The formation of new species due to geographic barriers is called a. isolation speciation.b.…
A: The formation of new species due to geographic barriers is called d. sympatric speciation.
Q: The pupfishes in the Death Valley region are an example of which evolutionary process? (a)…
A: Evolution occurs when genetic variations accumulate in the organisms.
Q: Which of the following is an example of gene flow? O a. horizontal gene transfer b. sexual selection…
A: Gene flow occurs when genetic material is exchanged between two or more populations of the same…
Q: Allopatric speciation refers to the formation of a new species: a. by stabilizing selection b. by…
A: Speciation: It is the process of splitting of a single species into two or more species. According…
Q: Column A Column B 1. Variation 2. Adaptation 3. Fitness A.to stop the existence of a species B. the…
A: The two main components of nature and abiotic and biotic components. The environment constitutes the…
Q: _________ increases the similarities between the gene pools of two populations. A. natural…
A: Answer: Option (D):- gene flow
Q: The type of speciation that takes place in geographically overlapping populations is known as…
A: Step 1 Speciation is the evolution of one or more new species from pre-existing ones. An important…
Q: Black-footed ferrets are an endangered weasel found in the Great Plains. If fire swept through the…
A: A. Bottleneck Effect is correct answer.
Q: A pair of birds flies to a deserted island and establishes a colony. Over time, this population…
A: The process of forming diversification of species is referred to as speciation. This occurs when a…
Q: ______is the original source of new alleles. a. Mutation c. Gene flow b. Natural selection d.…
A: Mutation is the original source of new alleles.
Q: When studying the processes of speciation, we learned about situations when two closely related…
A: Reproductive isolation is an evolutionary mechanism that promotes speciation by preventing the…
Q: 1. A population of freshwater tilapia lives in Pasig River. Supposed a large group of tilapia is cut…
A: ANSWER 1: - A large group of fish got separated from the existing group due to contamination of the…
Q: Speciation on islands is influenced by a) island gigantism b) adaptive evolution c) variation in…
A: Speciation is the phenomenon by which a different species emerges through evolution.
Q: The first step leading to allopatric speciation is (a) hybrid inviability(b) hybrid breakdown (c)…
A: Speciations are the process in which species evolve into something so drastically different than…
Q: Although natural selection is sometimes called the survival of the fittest, it is ultimately a…
A: Introduction : Only species with advantageous mutations have a distinct advantage over other…
Q: Why is reproductive isolation insufficient to define a species? A. Reproductive isolation doesn't…
A: Option D is the correct answer i.e. Reproductive isolation can be accomplished in a variety of ways.
Q: Briefly describe the following: i) Genetic Drift ii) Gene Flow iii) Heterosis iv)Effective…
A: Genetic drift - It is process of evolution in which allele frequencies of a population change over…
Q: ____tends to keep populations of a species similar to one another. a. Genetic drift c. Mutation b.…
A: Charles Darwin proposed the idea of Natural selection and it is the driving force behind evolution.…
Q: 25. You live on an island that has had a constant population size of 50 individuals for at least the…
A: A generation can be defined as "all of the people born and living at about the same time, regarded…
Q: 1a. Discuss the role of Gene Flow in evolution 1b. Explain how Natural Selection operates to bring…
A: Evolution refers to the change of characteristics of a population that can be inherited from one…
Q: 1. Describe how the following play into Darwin’s mechanism for evolution by natural selection. a.…
A: Evolution is the modification of pre-existing organisms into new ones. The genetic variation that…
Q: Evolution is the accumulation of genetic changes within _______________ over time. (a) individuals…
A: The biological change of a species over time is referred to as evolution. Evolution helps organisms…
Q: 25. Which letter indicates the most recent common ancestor between Tsavo and Zambia? a. A d. D b. B…
A: Answer: Cladistic approach : It is the approach which indicates the species relation between them…
Q: A species of tortoise finds its way to Grand Isle LA, where it becomes isolated with excessive…
A: A)Resource Partitioning : * Resources partitioning is the the division of resources to avoid…
Q: 2) A species is a group of individual organisms that interbreed and produce fertile, viable…
A: Evolution is the process of alterations in the characteristics of the species over several years.
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- When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that: a. similarities and differences in phenotypic characters reflectunderlying genetic similarities and differences. b. the animals use exactly the same traits to identify appropriatemates. c. differences in these traits caused speciation in the past. d. the adaptive value of these traits can be explained. e. variations in these traits are produced by environmentaleffects during development.Which of the following could be an example of microevolution? a. a slight change in a bird populations color due to a smallgenetic change in the population b. large differences between fossils found near the groundsurface and those found in deep rock layers c. the sudden disappearance of an entire genus d. the direct evolutionary link between living primates andhumans e. a flood that drowns all members of a populationExaptations are traits that: a. prepare some organisms for future environmental changes. b. appear in lineages as a result of an adaptive radiation. c. evolve in anticipation of a species future needs. d. are useful in new situations before natural selection alters them for a new function. e. occur in animals, but not in plants.
- The wings of birds, the legs of pigs, and the flippers of dolphins provide examples of: a. vestigial structures. b. homologous structures. c. acquired characteristics. d. artificial selection. e. uniformitarianism.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.6. Which of the following is not used as evidence of evolution? a. Biogeography b. DNA Sequences c. Folktales d. FOSSIL RECORDS 8. Which of the following is are analogous structures? a. The leg of a dog and flipper of a dolphin b. The limbs of humans and apes c. The wings of bats and butterfly d. The tales of mice and rats 9. Which of the following is true about vestigial structure or trait? a. These structures are highly developed especially for modern species b. It has an important function in both more highly evolved and more ancestral organisms c. It last not have a necessary function in more highly evolved organisms but it did in more ancestral organism d. It did not have a necessary function and more ancestral organism but it does in more highly evolved organisms 10. What do the structural similarities between the flippers of wheels in the arms of human suggest a. Humans and wheels have common ancestor b. The human species began life in the ocean c. Wheels are older than…
- 4. Why is the Hardy Weinberg law of equilibrium important to a study of evolutionary processes? a. it tells us how heavy are mammals and if they may have lived in cold enviroments in the past. b. It shows us to measure change in gene frequency in population to see if selection pressures are affecting gene expression. c.It allows us to study how eplgenetics affects specific traits d. It allow us to measure the age of fossils and date the origin of a species4. Which of the following is an example of convergent evolution? Group of answer choices a. A population of finches becomes separated in the Galapagos Islands and begins to develop into two different species of finch b. Two different species of plants in separate deserts evolve a similar waxy outer cuticle to preserve water c. One species of lizard evolves a green coloration to blend in with its tropical forest surroundings, whereas another species evolves a tan coloration to blend in with its desert surroundings d. Because they share a recent common ancestor, Lions and Bengal Tigers both have retractable claws for catching prey e. Melanic moths begin to lose pigment in their wings as the environment becomes less polluted 6. Which of the following scenarios is an example of stabilizing selection? Group of answer choices a. A population of sharks is evolving towards the average body size; small sharks fall prey to killer whales, large sharks can't get…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.The three beetle species live in the same ecosystem, and they likely evolved from the ancestral species that colonized the region. Which statement best explains how descent with modification influenced speciation in these beetles? A. The ancestral species carried neutral gene mutations that spontaneously caused speciation when they colonized the region. B. The ancestral species randomly diverged into three species before colonization and then colonized the regions that best suited their new adaptations. C. After colonization, small groups separated from the rest of the ancestral species and developed different adaptations that helped them survive and reproduce. D. After colonization, the large group interbred until they developed enough neutral genetic mutations for speciation to occur.1. If you are an evolutionary biologist; what definite characteristic will show a relatedness of two organisms? A. Similarity development C. Similarity structure B. Similarity courting behavior D. Similarity in genomic DNA 2.Vestigial structure is one of the anatomical evidences of evolution. Which of the following is NOT a vestigial structure? A. Hind legs of snakes C. Elbow joints of penguin B. Pelvic bone of whales D. Platypus fur 3. Based on scientific findings, which of the following statements is true? A. Very few living things can create complex organic molecules out of carbon and other common elements B. Only microscopic organisms begin their lives as single cell C. Genes are segments of DNA molecules D. All living things get the energy that they need for growth, repair and reproduction from sunlight. 4.What did biologists have discovered about evolution? A. Animals obtain their specific characteristics by obtaining genes from the…