Which of the following would exert some type of selection pressure on a population?Choose All That Applya tornado in the population's habitatO presence of another species with similar resource needsincreased population density due to habitat restrictionthe introduction of a new parasite into the populationthe mutation of a gene in an individual in the population

Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Answered: Which of the following would exert some…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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When the mean of a population shifts from one generation to the next due to selection this is called directional selection. true or false
Which type of environment would tend to reduce genetic variation in a population because of evolution by natural selection? an old growth forest with trees that are over 1,500 years old a tropical rainforest that is being deforested for farmland an ocean ecosystem that is becoming more acidic grasslands that are undergoing severe drought
An evolutionarily stable strategy (ESS) is a Group of answer choices strategy that, if adopted by all members of the population, cannot be invaded by a mutant strategy. strategy that, if adopted by part of a population, cannot be invaded by a mutant strategy. mutant strategy that cannot invade a population. strategy that, if adopted by all members of the population, can be invaded by a mutant strategy.
In a breeding population of 100 individuals, the frequency of the q allele is 0.05. What is the frequency of the p allele? 0.05 0.5 0.95 0.25
Which of the following is an effect of gene flow? Population size is greatly reduced Individuals establish a new population Natural disasters Genetic differences between populations are reduced
As we saw last week, population size is important. Ideally, this means you started with a lot of genetically diverse founders, but of course that isn’t always the case. In the case of the Española Galapagos tortoises it was 12 females and 2 males. So, often you have to grow your population to stabilize it and ensure there isn’t an unacceptable loss of genetic diversity over time, even if that genetic diversity is low. If you think back to the math from last week and do a little not so fancy algebra, you can see that genetic deterioration occurs at a rate that is the inverse of genetic retention, which you probably remember is 1- (1/2Ne) Assume that the Española Galapagos tortoise captive population started with an Ne/N ratio of 0.7. Calculate their rate of loss of genetic diversity given their original population size of 14 tortoises (N=14). You will first need to solve for Ne, then plug Ne into the rate of loss of genetic diversity formula. Now let’s work on growing the population.…
Decide which examples are most likely to increase variation or decrease variation. Some examples could do both. Which of the following could possibly increase genetic variation indirectly? toxins predator-prey relationships competition new habitat disasters increased food supply
Gene flow describes how genetic differences in individuals change after several generations the net movement of alleles from one population to another by individual migration the genetic diversity in a population from one generation to the next the frequency of alleles changes based on the selective pressure of the environment the plasticity of the gene pool
Which of these factors do you think effects the distribution of individuals in a population? Choose All That Apply O Mating behavior Dispersal of offspring O Availability of resources Social interactions O small size
In which population is evolution by natural selection most clearly demonstrated? Group of answer choices A virus sweeps through a population and makes everyone ill. A virus sweeps through a population and kills 10% of infants. It is not clear why some die and some don't. A virus sweeps through a population and kills 20% of the population. It is not clear why some die and some don't. A virus sweeps through a population and permanently sterilizes the 10% of the population that has allele hx25c.
Why would you not want to harvest to a point where salmon populations are kept at very low numbers? Select true or false for each answer. small populations [ Choose ] are more likely to go extinct do to unforeseen (stochastic) events small populations [ Choose ] are more likely to lose genetic diversity small populations Choose ] are more susceptible to inbreeding depression small populations [ Choose ] are not growing very quickly so you would have low fishing yields
Which of the following statements is FALSE? not all individuals in a population reproduce'equally the frequency of a characteristic in a population can change between generations differential reproductive success alters a population from one generation to the next microorganisms can evolve much more quickly than most other organisms generation times are similar between species Oall of these statements are RUE

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