What does this figure show? Thorns have their own unique DNA which evolves separately from the cactus DNA Thorns attract deer and other herbivores Thorns are adaptive for the deer in this environment Thorns are adaptive for the cactus in this environment O Thorns are adaptive for the deer in all environments Thorns are adaptive for the cactus in all environments OThorns are an example of sexual selection

What does this figure show? Thorns have their own unique DNA which evolves separately from the cactus DNA Thorns attract deer and other herbivores Thorns are adaptive for the deer in this environment Thorns are adaptive for the cactus in this environment O Thorns are adaptive for the deer in all environments Thorns are adaptive for the cactus in all environments OThorns are an example of sexual selection

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter12: Processes Of Evolution

Section: Chapter Questions

Problem 11SQ

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Select all of the example that represent biological evolution horses that get more exercise become stronger and will have foals that are stronger the number of individuals witht eh type o blood genotypes increases in a small human population size due to a reduction in population size one species from the mianland diverges into two distinct species on a group of islands indivduals in a population exposed to high levels of ultraviolet light become blind as adults and will have offspring that re also blind the frequency of the gene for sickle-cell anemia in a human populationd decreases from 0.002% to 0.001% I think its 2,3, and 5
What is meant by the following statement? "When mutation is random, natural selection is not." Mark all correct answers Group of answer choices A. A mutation is caused by changes in the environment. B. Natural selection can favor some mutations and not others. C.Mutations for advantageous traits are more likely to be passed on to the next generation. D.Selection can change depending on the environment.
In order for natural selection to occur, organisms must (select all that apply) have a variation that can be passed from one generation to the next. have differential reproductive success. survive longer than another organism. have adaptations to their environment.
Natural selection acts upon ____________________________, evolution upon _______________________________. What is the gene pool and how does natural selection act upon it? If a version of a gene confers an advantage to survival and reproduction, that version of the gene will be favored by natural selection and we can expect the frequency of that gene to ______________________ within the population over time. Versions of the gene that do not confer an advantage (or confer a disadvantage) should become _______________ prevalent . This generation to generation change in the gene pool is called ________________________. Changes to the genetic makeup of a population and the individuals within it can arise via two mechanisms. List and describe both. Both of these processes are ________________________________. Once created, new combinations of genes will be acted upon by _________new alleles_______________________. How is Darwinian “fitness” different than the typical definition used in…
During a study session about evolution, one of your fellow students remarked “The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result.” Which statement is MOST likely to be helpful in correcting this student’s misconception? Why? * No answer Disuse of an organ may lead to its eventual disappearance. Spontaneous mutations can result in the appearance of new traits. Only favorable adaptations have survival value. Characteristics acquired during an organism’s life are generally not passed on through genes.
What is the relationship between changes in gene frequencies and adaptations? The change in genes results in adaptations, which in turn, lead to the individual's ability to survive in its environment. The change in genes reduces adaptations, limiting the individual's ability to adapt for survival. The change in genes speeds up the process of adaptations, and the result is adaptations within any species will occur within a year. The change in genes results in adaptations in the individual, but these adaptations cannot be passed on to future generations.
Which of the following lists events in the proper order to reflect how natural selection works in a population of lice that could originally be controlled by the pesticide permethrin? a. A louse population evolves resistance to permethrin; permethrin is used to kill lice; lice become more common in schoolchildren. b. Some lice are resistant to permethrin; permethrin is used to kill lice; lice resistant to permethrin become the most common type. c. Permethrin resistance is common in lice; permethrin is used to kill lice; most lice become sensitive to permethrin. d. Permethrin is used to kill lice; individual lice change in order to survive exposure to permethrin; most lice become resistant to permethrin.
Natural selection and artificial selection or selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. Changes in genetic traits have occurred over generations through both natural selection and selective breeding although the occur through different means. What characterizes only artificial selection? Choose all that apply. A) chickens that lay larger eggs are favored B) selection increases the chances of surviving C) selection make a species stronger and fit for survival D) selection favors the desired characters in the new organisms
Why are fruit flies good subjects with which to observe the process of evolution through natural selection? Fruit flies are good subjects because they have very long generations, and scientists can control their development over long periods of time. Fruit flies are good subjects because they have short generations and scientists can control their development in the lab. Fruit flies change into different species of flies each generation, so they have more features to study. Fruit flies are K-strategists, and these are easier to study over short periods of time.
What is the difference between evolution, natural selection, and artificial selection? A. Evolution is a genetic change in a population over time which can occur through natural selection. Artificial selection is the differential reproduction of individuals in a population to promote the characteristics chosen by the breeder. B. Natural selection is the change of allele frequencies in a population over time. Evolution leads to differential survival and reproduction of individuals. Artificial selection has produced domesticated animals and plants. C. Evolution is a mechanism of artificial selection. Natural selection is a form of artificial selection in which nature selects the characteristics that are most beneficial to a species. D. Artificial selection is a mechanism of evolution and is the main process of domesticating animals and plants for human use. Natural selection is the same as evolution.
8) Darwin's finches are often used to illustrate evolution. Evaluate the finch beaks shown in the picture. Choose ALL of the statements that correctly explain the evolution of finch beaks. A) As the environment changed, the finches grew longer beaks to allow them to get food out of fruits. Eliminate B) Finches with longer beaks settled on the same island with smaller beaked birds. Over time, they bred, producing medium beaked birds that became more common in the population. C) There are finches with different types of beaks in the population. During a drought, those with shorter beaks are not able to find sufficient food and die, leaving them unable to reproduce and pass the trait on to offspring. D) A random mutation introduced the shorter, thicker beak into the population. However, those with thinner, longer beaks were better able to get nectar from the island's flowers. Those birds with the shorter, thicker beaks were unable to get enough food to survive.…
The long horns on Texas longhorn cattle are an example of - natural selection - genetic drift - sexual selection - gene flow - all of the above