In a study investigating the relationship between urban development and bird populations, researchers proposed a complex hypothesis that suggested urban areas with a higher density of tall buildings provide unique nesting opportunities for certain bird species, leading to increased bird diversity in densely built urban environments. According to their hypothesis, the verticality of urban landscapes creates habitat niches for birds not typically found in natural habitats.Which finding, if supported by empirical evidence, would most directly challenge the researchers' complex hypothesis?Choose Your AnswerPreviousNextA.Urban areas with a high density of tall buildings were found to have fewer bird species overall compared to less densely built urban areas.B.The presence of tall buildings was positively correlated with an increase in the population of common city-dwelling bird species.C.Densely built urban areas had a significantly higher diversity of bird species compared to natural, non-urban environments.D.Certain bird species known for nesting in tall trees were observed nesting exclusively in densely vegetated urban parks rather than tall buildings in densely built areas.

While researching a topic, a student has taken the following notes:Pigeons, or rock doves, originally built their nests on rocky ridges and cliffs.Today, pigeons prefer nesting on hard surfaces like concrete, marble, and stone.Urban environments are abundant with nesting opportunities for pigeons, like AC units, fire escapes, and the tops of statues.The use of insecticides eliminated apex predators, such as falcons and hawks, that hunted pigeons in cities.The pigeon population in New York City got so large that the city hired a professional falconer in 2003 to drive them away.The student wants to make and support a generalization about pigeons. Which choice most effectively uses relevant information from the notes to accomplish this goal?While pigeons originally built their nests on cliffs, they have since found an affinity for nesting on concrete, marble, and stone.eliminatePigeons thrive in urban environments because of the lack of apex predators and an opportunity to build nests in environments similar to rocky ridges and cliffs.eliminateWith the elimination of apex predators in New York City, the city hired a professional falconer in 2003 to control the pigeon population.eliminateUrban environments, which have an abundance of nesting opportunities like AC units, fire escapes, and tops of statues, are ideal for birds like pigeons. eliminateScratch BoardDo your scratch work hereClear00:09:232021222324252627

The Rock Pigeon, the most common city pigeon, is native to several areas across the globe, including Europe, North Africa, and India. Today, the city pigeon can be found all over the world and makes its habitat in many cities across North America. But this pattern is not the result of natural migratory patterns. In the 1600s European settlers traveled with pigeons to America in order to keep them as farm animals. Cities such as New York are overpopulated with pigeons now because the birds have adapted to live and build nests in the city’s many small crannies.Which choice best describes the function of the third sentence in the overall structure of the text?It provides an explanation for the ways in which pigeons have migrated across the globe.eliminateIt undermines what might be an initial theory to explain the global prevalence of pigeons today.eliminateIt contextualizes the rationale for the European settlers’ choices.eliminateIt contradicts the findings reported in the passage’s first sentence.

A bird population nested along the banks of a river and fed off fish. After new homes were built along the river, the bird population declined. A change to which limiting factor was most likely responsible? space water weather sunlight

Ahmadi’s paper on diversity examines the neighborhood ofAJane and FinchBThornhillCRegent ParkDCabbagetown

relates to a cities surrounding features, both human-made and natural