Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Chapter 15, Problem 6FTB
The evolutionary fitness of an organism is measured by its success at _________. The fitness of an organism can change if its ____________ changes.
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_____________ is the evolutionary process by which populations evolve to become distinct species. Reproductive isolation, the end of ___________ between populations, is always part of the process by which sexually reproducing species achieve and maintain separate identities.
The size of the population of a species in an ecosystem is determined by the ___________ factors and _____________ factors.
The process in which populations accumulate adaptations over time to become more suited to their environments is called ____________ . It is considered the unifying concept of ____________ , which is the study of life.
Chapter 15 Solutions
Biology: Life on Earth
Ch. 15 - The ________ provides a simple mathematical model...Ch. 15 - 2. Different versions of the same gene are called...Ch. 15 - An organism's ________ refers to the specific...Ch. 15 - 4. A random form of evolution is called _________....Ch. 15 - Competition is most intense between members of...Ch. 15 - 6. The evolutionary fitness of an organism is...Ch. 15 - 1. What is a gene pool? How would you determine...Ch. 15 - 2. Define equilibrium population. Outline the...Ch. 15 - How does population size affect the likelihood of...Ch. 15 - If you measured the allele frequencies of a gene...
Ch. 15 - 5. People like to say that “you can’t prove a...Ch. 15 - 6. Describe the three ways in which natural...Ch. 15 - What is sexual selection? How is sexual selection...Ch. 15 - In North America, the average height of adult...Ch. 15 - Malaria is rare in North America. In populations...Ch. 15 - By the 1940s, the whooping crane population had...Ch. 15 - Prob. 4ACCh. 15 - A preview question for Chapter 16: A species is...
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- A difference in survival and reproduction among members of a population that vary in one or more traits is called ________.arrow_forwardTRUE OR FALSE:"Genetic divergence is the process whereby populations of a species accumulate differences in their gene pool due to lack of gene flow between them".arrow_forwardTrue or false: Natural selection, in general, references variation in survival and reproductive success in individualsarrow_forward
- If an organism is chosen for mating based on its contribution to the total fitness of the population, then we are using the _______ method for chooing parents.arrow_forwardbartleby SEARCH https://www.bartleby.com/questio... ASK AN EXPERT Science >> Biology » The logistic model incorporates carrying capacity to make the moc Question exponential The logistic model incorporates carrying capacity to make the model random density-dependent LIVE TUTORING density-independent Transcribed Image Text: The logistic model incorporates carrying capacity to make the model exponentia dependent random density-independent Type here to search HAarrow_forwardDuring the 20th Century, scientists in the USSR undertook a program to domesticate foxes. The scientists selected those foxes who were most willing to interact with humans (in exchange for food.) These foxes were bred for many generations, ultimately resulting in the world's first domesticated foxes. Some even developed floppy ears and a curly tail, like dogs! This is an example of _____________ .arrow_forward
- A/An ____________ is an ecological relationship where one party benefits and the other is unaffected.arrow_forwardThe theory of kin selection (inclusive fitness) takes into account that an organism can pass on copies of its genes through the reproduction of close relatives. True or Falsearrow_forwardThe following experiment is used for the following question. A researcher discovered a species of moth that lays its eggs on oak trees. Eggs are laid at two distinct times of the year: early in spring when the oak trees are flowering and in midsummer when flowering is past. Caterpillars from eggs that hatch in spring feed on oak flowers and look like oak flowers, but caterpillars that hatch in summer feed on oak leaves and look like oak twigs. How does the same population of moths produce such different-looking caterpillars on the same trees? To answer this question, the biologist caught many female moths from the same population and collected their eggs. He put at least one egg from each female into eight identical cups. The eggs hatched, and at least two larvae from each female were maintained in one of the four temperature and light conditions listed below. Temperature Springlike Springlike Summerlike Summerlike Day Length Springlike Summerlike springlike summerlike In each of the…arrow_forward
- Average daily gain, FE, and FCR are examples of ________ trait. Production Reproduction Product Qualityarrow_forwardExplains, with several scientifically detailed information, how global warming affects the beélugas population. (With an explanation of more than 700 words)arrow_forwardThere are two isolated populations (A and B) of an endangered plant species. Population A has had a constant size of 2,000 plants, and population B has had a constant size of 250 plants. We most expect to see more changes in the frequency of neutral alleles in population _______ due to _______.arrow_forward
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