EP BIOLOGY:SCIENCE F/LIFE...-MOD.ACCESS
6th Edition
ISBN: 9780134839530
Author: BELK
Publisher: PEARSON CO
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Chapter 12, Problem 8LTB
Summary Introduction
Introduction:
The fusion of
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In nature, evolutionary transitions must act on preexisting traits and behaviors because selection does not start from scratch. This is commonly referred to as the ____________ principle.
Select the best working definition for evolution:
Change in species over time
Change in genotype frequencies in individuals over time
Change in genotype frequencies in a population over time
Change in allele frequencies in a population over time
According to the Hardy-Weinberg Equilibrium Equation, all of the following slow down or stop evolution EXCEPT (choose as many as apply):
Group of answer choices
very small population
very large population
no one leaves or comes into the population
everyone has equal numbers of offspring
there are no mutations
there are lots of mutations
there is non- random mating
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- Please answer the following question and use the example to answer it:arrow_forwardThe theory of evolution is most accurately described as... Just an opinion that some scientists hold about how living things change over time. An educated guess about how species originate. An idea about how acquired characteristics are passed on to subsequent generations. One possible explanation, among several scientific alternatives, about how species have come into existence. An overarching explanation, supported by much evidence, for how populations change over time.arrow_forwardIndicate whether each statement presents an idea of Jean-Baptiste Lamarck, of Charles Darwin, or of Both Scientistarrow_forward
- List the premises of evolution by natural selection. What is the inevitable outcome?Variation; heritability; “struggle”/context; differential survival/reproductionarrow_forwardTrue or Flase: Evolution through natural selection can NEVER be observed because it happens too slowly for humans to notice.arrow_forwardWhich of the following is NOT one of the four factors that contributes to evolution by producing and redistributing genetic variation (or contributes to microevolution as calculated by the Hardy-Weinberg equilibrium)? Group of answer choices Acclimatization Gene flow Genetic drift Recombination Mutationarrow_forward
- The following illustrations represent two different patterns of evolution. Briefly discuss the differences in these two patterns with regard to how evolutionary change (on the x axis) occurs with respect to time (on the y axis).arrow_forwardFind two cases in the media (internet, TV, etc.) of a person (organization, etc.) attempting to describe and example of the process of Darwinian evolution but is incorrectly describing the evolution process using a Lamarckian approach to evolution. Give the following information for both cases: Source (Where you found it) In what ways are they mistakenly claiming that the evolutionary process is an example of Darwinian evolution? How do you know that they are really describing evolution through a Lamarckian process, not a Darwinian process?arrow_forwardIndicate the appropriate mechanism(s) of evolution at work in the following: Remember that forces may oppose one another! Choose from: Non-random or Assortative mating Mutation Natural (but non-sexual) selection. etc.) Sexual selection Gene flow (Migration) Kin selection Genetic drift (Founder effect, Bottleneck, Prior to 1970 a population of moths with dark brown coloration blended in well with the trees they live on. Bird predation on the moths is very low in the population. In 1976 a deletion in the genetic code of an individual male moth occurred, resulting in a new color morph (White). The white moth was favored for mating by the wild females, and by 1980 14% of moths in the population exhibited the white color. Jays (birds that feed on moths) in the area could readily see these white moths and, once they had learned to look for them, eliminate the white moths from the population by 1981. Mechanism(s) observed from 1970-1976:arrow_forward
- How do the rest of the vocabulary terms (the ones you didn't use below) apply to what you observed in the images? Vocabulary terms: Natural Selection, Adaptation, Fitness, Genetic Diversity, Phenotype, Polymorphic, and Selective Pressurearrow_forwardIn the given below option which of the following is not a component of evolution bynatural selection?1. Variation exists within a population.2. Organisms compete for resources.3. Individuals have different reproductive success.4. Organisms adapt due to environmental changes.5. Species are fixed.arrow_forwardA new phenotype arises due to a mistake that occurs during DNA replication in a germ line cell (which makes eggs/sperm) This violates the assumption of _______________because an evolutionary mechanism, ________________,is operating the population. (name the relevant Hardy-Weinberg assumptionand the evolutionary mechanism)arrow_forward
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