Marsupials, such as kangaroos, koalas, and wombats, are mammals that care for their newborn young in a pouch. All marsupials that are found in Australia are thought to have evolved from a single species that migrated to the island and then adapted to the various niches. What does this example illustrate? behavioral adaptation adaptive radiation geographic isolation population explosion

Marsupials, such as kangaroos, koalas, and wombats, are mammals that care for their newborn young in a pouch. All marsupials that are found in Australia are thought to have evolved from a single species that migrated to the island and then adapted to the various niches. What does this example illustrate? behavioral adaptation adaptive radiation geographic isolation population explosion

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 8SQ

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Similar questions

Which is required for a population to evolve?a. genetic diversity c. gene flowb. selection pressure d. none of the above
Two different species cannot occupy the same niche in the same geographic area. If they do they will compete with one another for the same food and other resources. Eventually, one species will out compete the other. This is an example of natural selection. A) True B) False
Which of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices Variation between individuals is not heritable. The environment is changing at a relatively slow rate. The population lives in a habitat where there are no competing species present. The population size is large.
How does extirpation differ from extinction? Group of answer choices Extinction and extirpation are the same thing. Extirpation is the loss of a single population, while extinction is the loss of an entire species. Extinction only happens during a mass extinction. Extinction is the loss of a single population, while extirpation is the loss of an entire species.
Which of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices The population size is large All variation between individuals is due only to environmental factors The population lives in a habitat where there are no competing species present The environment is changing at a relatively slow rate
Primates are examples of: density-dependent species density-independent species r-selected species K-selected species
If gene flow between two populations stops, which of the following could occur given enough time? a. speciation b. the population each gain unique alleles c. the timing of reproduction changes ending their ability to interbreed d. frequencies of alleles shift in different ways e. these are all things that could occur if gene flow between two populations of one species ended, given enough time
gene flow makes populations more genetically similar ?True 0r False
Which of the following would likely not be a result of character displacement? A: The competition between 5 beetle species living in the same area is lessenedB: One of the four bird species on an island goes extinctC: Coevolution of plants and pollinatorsD: Two lizard species in the same area evolve the ability to feed on different insects
Game theory applied to evolution claims that an ESS (Evolutionarily Stable Strategy) can exist in a population. This ESS is a strategy that if all individuals adopt it, no mutant strategy can invade the population. Is the “jumping off a cliff when the food supply is limited” a real ESS? Why or why not?
Which of the following is NOT an example of an r-selected population? Select one: a. Mosquito lifespan is between 42 and 56 days for females and 10 days for males. b. Minnows spawn 16 to 26 times per year, yielding up to 10 000 eggs per female. c. Houseflies are very tolerant of a wide range of environmental conditions and thus have a broad range of habitat. d. Algae are capable of reproducing asexually and sexually to take advantage on the conditions of the environment.
Which reproductive isolating mechanism(s) might be operating in each situation? There may be more than one possible answer for each. a.Different species of songbirds inhabit the same forest yet do not interbreed. b.Salmon and trout populations breed in the same streams in British Columbia, during the same period. c.A gardener has two closely related plant species. One blooms in the summer; while the other blooms in the spring.