Most of the temperate grasslands in the northern hemisphere have been converted to: Orchards for fruit production O Crop land for vegetable production O Crop land for grains O Tree plantations for timber O Tree plantations for biomass QUESTION 26 Ecologists characterize species richness by the r/K selection theory. What are the traits of K selected populations? A. Live in a stable environment B. Have a high survival rate but few offspring OC Reproduce rapidly, early, with large numbers of offspring

Most of the temperate grasslands in the northern hemisphere have been converted to: Orchards for fruit production O Crop land for vegetable production O Crop land for grains O Tree plantations for timber O Tree plantations for biomass QUESTION 26 Ecologists characterize species richness by the r/K selection theory. What are the traits of K selected populations? A. Live in a stable environment B. Have a high survival rate but few offspring OC Reproduce rapidly, early, with large numbers of offspring

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter44: Population Ecology

Section: Chapter Questions

Problem 2CT: Mountain gorillas are a highly endangered primate species, with 800 or so individuals surviving in...

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Can someone please help me with 2 multiple choice question, please choose the best that fits, Thank you 1)In which of the following situation would you expect to find the largest number of K-selected individuals? A) temporary pools that form afer rain showers but dry up within 2-4 weeks B) sand dunes that shift continually with the wind C) a prairie(grassland) ecosystem right after a fire D)a temperature stable lake that has existed in the same location for many generations 2)The greastes effect that hmans have on the carbon cycle derives from A) the production of methane from domestic cattle B) all of these C) the production of CFCs D) runoff of fertilizers from agriclture E) the burning of fossil fuels
Mountain gorillas are a highly endangered primate species, with 800 or so individuals surviving in the two remaining populations. A recent sampling of mountain gorilla genomes revealed a very low level of genetic diversity. Explain why a decline in genetic diversity often accompanies a decline in population size.
One concept of conservation biology is known as minimum viablepopulation. Some species’ populations are so fragmented andsmall that they may have very little genetic variability left. Withminimal genetic variation in the population, there is little likelihoodthat a population can adapt to an environmental threat, such as anew disease. Florida panthers are at or below the minimum viablepopulation level (estimated population less than 80). 1)Do you think that it is practical to use limited resources toconserve a population like the Florida panther? 2)Why?
Question 20 How do new species arise, according to the theory of natural selection? when an old species goes extinct, a new species arises to take its place ) individuals in a population pass on new traits they have acquired during their lifetimes (3) two new species spontaneously branch off from ancestor populations from time to time if a population is reproductively isolated in a sufficiently different ecosystem for an extended period of time, it will develop adaptations that will eventually render it incapable of interbreeding with its host population
Which statments are correct? Question 25 options: Species diversity tends to increase with evapostranspiration Species diversity tends to increase with when parasitism is low Species diversity tends to increase with island area Species diversity tends to be higher when disturbance frequency is low Species diversity tends to increase with decreasing latitude
Question 3: I introduced 2 species of super-mutant ant species into my terrarium. These are the only species competing for resources. Species 1's common name is the TEN-headed ZINGer ant and they have a population size of N1 and a carrying capacity of K1. The blue line shows the isocline for species 1. Species 2's common name is the Evil Ant. The population size of species 2 is N2 and the carrying capacity is K2. The green line shows the isocline for species 2 The red dot is the present combination of N1 and N2. Part a) Given the data how will the population of both species (N1 and N2) change- pick the correct colored arrow (pink, brown, black, or red) to show the direction that the combination of N1 and N2 will change
Polar bears live on the ice cap near the North Pole. Their numbers aredwindling, apparently because of both pollution and global climatechange. List some specific ways that the melting of the Arctic ice capmight affect polar bear populations.
Please help me to choose one of the best asnwer for this 2 multiple choice questions, Thank you ) which of the following is NOT a definiton for biodiversity? A) the number of individuals in a population B) The variety of ecosystems within a given area C) All of these are possible definitions of biodiversity D)The number of alleles for a particular gene E)The number of species in a community 2)Imagine community with a biodiversity of 25 species.one species is hunted to extinction by humans, after which the community is protected from any human intervention. HOwever a year later you find that biodiversity is down to 5 species.what does this tell you about the species that went extinct due to hunting? A)It was a weak competitor B)It must have been a predator C) it may have been keystone species D) it must have been producer E) It was a virulent pathpgen
Question: 8. Describe the relevance and importance of generation time with respect to adaptation, natural selection, and evolution. 9. Describe the four phases of a standard growth curve. Explain what is occurring with respect to growth and death rates at each phase.
SCIENCE, TECHNOLOGY, AND SOCIETY Some people regardthe rapid population growth of less industrialized countries asour most serious environmental problem. Others think that thepopulation growth in industrialized countries, though smaller,is actually a greater environmental threat. What problems resultfrom population growth in (a) less industrialized countriesand (b) industrialized nations? Which do you think is a greaterthreat, and why?
Which of the following are causes or consequences of an extinction vortex? Question 71 options: A population is greatly affected by genetic drift All of the above A population experiences inbreeding A population bottleneck drastically reduces the size of the gene pool The average fitness of the population declin
Scenario part 2 Imagine you, a researcher, return to this same population after 30 years and you see blue, green, yellow, and orange frogs. Questions part 2 name 1 key agent of microevolution that could be responsible for the appearance of orange frogs in this population. (just 1) name 1 key agent of microevolution that could NOT be responsible for the appearance of orange frogs in this population (just 1)