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- What is Natural Selection? A. Inherited traits change over time. B. Organisms develop traits that allow them to survive and reproduce. C. Traits that offer and advantage/benefit will be passed on to offspring. Only A & C Only A All are correct: A, B, & C Only A & BWhich of the following best explains the role mutations play in natural selection?A. Most mutations are negative and result in the extinction of the entire speciesB. Mutations may appear for one or two generations, but they usually disappear quickly.C. If the environment changes, an existing organism develops a mutation that will help them to survive.D. Some mutations give individuals an advantage in their environment, allowing them to survive and reproduce.D is my answer is it correct?Darwin’s Theory of Natural Selection occurs in 4 steps.Which of the following is NOT one of these four steps?a. Differentiationb. Selectionc. Competitiond. Overproduction
- One of the key ingredients of evolution by natural selection is variation. Within a population, evolution by natural selection will occur if there is a selective advantage of one variation over another. What are the sources of variation in living populations? Select all that apply. a random mutations to DNA when DNA replicates in reproductive cells b environmental factors that may mutate DNA in gametes c mutations in somatic cells d crossing over during meiosisThe process that involves passing on genetic informationbetween generations is calleda. natural selection.b. reproduction.c. development.d. metabolism.1. Which among the following is NOT a principle of natural selection? a. The DNA sequence of the organism will change. b. The characteristics of organisms are inherited or passed from parent to offspring. c. Offspring vary among each other about their characteristics, and those variations are inherited. d. More offspring are produced than can survive. 2. Tawilis is a freshwater sardine endemic only in the Taal Lake in Batangas province. After several eruptions of the Taal volcano in the 21st century, the sardine population mentioned above rapidly dropped up to 82%. What best describe this scenario? a. mutation b. migration c. natural selection d. genetic drift
- 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.Which of the following statements does NOT agree with the tenets of Darwin's theory of evolution by means of natural selection? O A. The phenotypes of individuals in a population will differ and, in some cases, these differences are the result of traits passed down from parent to offspring. B. Phenotypes become more common over time if individuals with those phenotypes have higher reproductive success. O C. The fitness of an individual with a particular phenotype is independent of the environmental conditions it experiences. O D. Resources limit the total number of individuals in a population.Most new mutations are detrimental, yet rare beneficial mutations canbe adaptive. With regard to the fate of new mutations, discuss whetheryou think it is more important for natural selection to select againstdetrimental alleles or to select in favor of beneficial ones. Which doyou think is more significant in human populations?
- 1a-Farmers often use pesticides to kill insects to protect their crops. However, insect populations will often develop resistance to any pesticides that are used on them within a few generations. What is the selective pressure in such a scenario? O a. Pesticide treatment O b. The crops Oc. Pesticide resistance Od. The insects Oe. Mutation 1b-What is/are the element(s) required for a population to change due to natural selection? Select all options that are correct below. a. Variability in a population b. Genetic drift c. Inheritance of traits d. Differential survival e. EvolutionOf the following, which is the least plausible hypothesis for why natural selection has not eliminated genes for male homosexuality? a. Perhaps the relatives of a homosexual male have more than an average number of children. b. Homosexual people might spread their genes by helping their brothers and sisters rear their children. c. Maybe there is no gene for homosexuality. Instead, an environmental event produces an epigenetic effect that can be transmitted from one generation to the next. d. Some homosexual men have children.Ton are the same thing. 4. According to the theory of natural selection, why are some individuals more likely than others to survive and reproduce? a. They pass on to their offspring new characteristics they acquired during their lifetimes. b. They are better adapted to exist in their environment than others. c. They do not pass on to their offspring new characteristics they have acquired during their lifetimes. d. They tend to produce fewer offspring than do others in the same environment.
