Mclver beetles come in three colors: black, white, and brown. They are consumed by the Foust finch. To avoid predators, the beetles hide on the bark of trees in their environments. If the number of trees with black bark was significantly greater than the number of trees with white or brown bark, what would be the effect on the predation of Mclver beetles by the Foust finches? Far fewer black beetles would I + Which of the five conditions of Hardy-Weinberg equilibrium would be violated in this situation? V [ Select ] Genes are now mutating. Mating is no longer random. The population size is now much larger. The population would experience natural selection pressures. There is now immigration of individuals into the population.

Using the netlogo run the sheep-wolves-grass model variation, but set INITIAL-NUMBER-WOLVES to 0. This gives a stable ecosystem with only sheep and grass. Why might this be stable while the variation with only sheep and wolves is not?

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Changes in a population of Monkey-eating eagles are shown in the graph below. Referring to labeled X, which statement best explains the section of this graph? X Time a. Resources are extremely high while predation is low O b. The Monkey eating eagles are no longer in competition for resources with other species O C. The monkey eating eagles population has reached its carrying capacity o d. Interbreeding is occurring between members of different species Population size

An unusually high temperature may be lethal to some species in a population and this is an example of a(n) _ factor. density-dependent density-independent O equilibrium-independent stability resilience

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An example of niche differentiation? *both forage in trees for insects and seeds *when sympatric, chestnut-backed tends to forage in higher branches than black-capped Chestnut-backed Chickadee Black-capped Chickadee ( - Black-capped (----) Chestnut - backed O Mike Hopiak 40 80 00 120 140 HEIGHT (feet) FiG. 1. Comparison of feeding heights of Black-capped and Chestnut-backed chicka If chestnut-backed currently forage in the upper branches and black-backed currently forage in the lower branches because of niche differentiation (i.e. evolutionary change in resource use caused by competition in the past), what would you expect the fundamental and realized niche to be for these two species? The fundamental niche of chestnut-backed is [ Select ] The realized niche of chestnut-backed is [ Select ] The fundamental niche of black-backed is [ Select ] The realized niche of black-backed is [ Select ] NUMBER OF BIRDS (per cent)

Assuming that both types of pom-poms are present in the population, what do you think would happen to the pom-poms population if the black forest experienced a prolonged drought so all the trees died and the habitat red grassland

Gotelli discusses how environmental stochasticity influences extinction, arguing that a scaling relationship between the mean and variance of population growth rate (r) determine extinction risk. What is the scaling relationship? О а. Environmental stochasticity doesn't influence extinction risk b. Extinction will occur if the variance in r is double the mean С. Extinction will occur if the variance in r is greater than the mean squared d. Extinction will occur if the variance in r is greater than the mean е. Extinction will occur if the variance in r goes to 0

Ants form associations with many types of other insects that feed on the sap of plants.One of these types of insects is an Ecuadorian tree hopper. You think that theassociation between the ants and treehoppers might be a mutualism. Tree hoppersfeed on plants, and the ants feed on the “honeydew” that is excreted as waste by thetreehoppers. In return, the ants may protect the treehoppers from predators les and controls should follow from your methods.QUESTIONS1. Describe a set of methods for a manipulative experiment to test the hypothesis:a. is it a field or lab experiment?b. what are the treatments and how do they differ?c. how many replicates are there of each treatment?d. what are three standardized conditions of your treatments?e.What is the independent variable in your experiment (including any units inmetric)?f. What is the dependent variable in your experiment (including any units in metric)?g. Identify one control treatment in the experiment, and state if it is a positive…