Changes in a population of wildebeests are shown in the graph below.Which statement best explains the section of the graph labeled X?Choose 1 answer:Choose 1 answer:(Choice A)   The wildebeest population has reached its carrying capacity.AThe wildebeest population has reached its carrying capacity.(Choice B)   Interbreeding is occurring between members of different species. BInterbreeding is occurring between members of different species.(Choice C)   The wildebeest are no longer in competition for resources with other species.CThe wildebeest are no longer in competition for resources with other species.(Choice D)   Predation is low and resources are high. DPredation is low and resources are high.

Read each of the scenarios below. Then, select the option that best represents a scenario illustrating natural selection.A In a population of birds, those with larger beak sizes are better able to crack open tough seeds, providing them with a food source during periods of scarcity. Consequently, the average beak size in the population decreases.B In a population of flowers, those with a particular color variation attract more pollinators and produce more offspring. As a result, the proportion of flowers with that color variation decreases over generations.C In a population of rabbits, those with longer legs are more successful at outrunning predators and are more likely to survive and reproduce. Over time, the average leg length in the population increases.D In a population of fish, those with brighter colors are more easily spotted by predators, leading to higher mortality rates. As a result, the proportion of fish with bright colors increases over time.

Which of the following statements best explains the trend in global mammal species richness represented in the graph above?ResponsesMammal species richness is greatest at higher latitudes where there is less competition for limited resourcesMammal species richness is greatest at higher latitudes where there is less competition for limited resourcesMammal species richness is greater near the equator where primary productivity is higherMammal species richness is greater near the equator where primary productivity is higherMammal species richness is greater in less developed nations where human disturbance is less commonMammal species richness is greater in less developed nations where human disturbance is less commonMammal species richness is greater in coastal regions where rainfall is greater

Select the correct answer.Conservationists establish that the carrying capacity of a population of deer in an extensive geographical area is 945. The current population of deer is 1,100. What is likely to happen to the population of deer? A. The growth pattern will change from logistic to exponential. B. The minimal viable population for the deer will increase. C. Deer from other populations will immigrate to find mates to reproduce successfully. D. The population will remain healthy, and its numbers will increase. E. The population size will drop until the numbers reach the carrying capacity.

A herd of bison currently has 55 members. Based on the available resources, biologists estimate that the size of the herd will increase at a rate of 6% per year. Which of the following graphs models this relationship, if the x-axis represents years and the y-axis represents number of bison?A.B.C.D.SUBMITarrow_backPREVIOUS

In which of the following situations is biodiversity in a population likely to decrease over time causing a genetic bottleneck?A.Two new individuals of deer join an existing deer population.B.A storm kills 75 percent of a population of a species of a bird population in an area.C.A neutral mutation occurs in an individual of a population.D.A tree falls in a forest disrupting the habitat of several squirrels.