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Biologists believe that a large number of species that are part of the rain forest ecosystem are on the verge of extinction. Which statement BEST describes the role of urbanization in this disaster? Responses A Urbanization leads to deforestation and loss...

8 minutes ago

Darwin hypothesized that there are definite steps to natural selection. One is populations are large and in the population variation exists. Consider this population of disease-causing bacteria. What is the MOST LIKELY cause for variation in this populati...

8 minutes ago

Two students describe natural selection to their classmates. Student 1 describes that individuals are able to evolve to fit their changing environment and thus result in populations that are well adapted over time. Student 2 proposes that natural selectio...

9 minutes ago

The process of evolution involves changes in the genetic makeup of a population over a period of time. Sexual reproduction enhances variability among offspring. The random alteration of DNA from parent to offspring, called mutations, also produces variabl...

11 minutes ago

Despite their differences in appearance, all bony fish have common ancestors. Their fins develop from similar structures and usually have a prescribed number of bones. Because of this, the large rudder-like dorsal fin of a sailfish, the poisonous dorsal f...

12 minutes ago

While visiting the Galapagos Islands in 1835, Charles Darwin collected over thirteen different species of a type of bird called a finch. He later observed that the birds were similar in many ways but often differed in the size and shape of their beaks. Wh...

13 minutes ago

Based on the food web, correctly predict how changes in the number of a certain species affect the balance of the ecosystem. Choose each correct statement by clicking on the sentence. (Choose 3) Responses A If the number of rabbits increased, the number o...

13 minutes ago

In order to support his theory of evolutionary change, Charles Darwin concentrated his studies on the many species of finches in the Galapagos Islands. Darwin noted that many of the birds had different shapes and styles of beak. What is a possible explana...

14 minutes ago

Based only on the graphic above, which mammals likely shared a most recent common ancestor? Responses A The cat and the bat based on average size and appearance of organism’s front limbThe cat and the bat based on average size and appearance of organism’s...

15 minutes ago

The model shows the process of evolution at work in a population of aphids with varying amounts of pesticide resistance. Select ALL of the requirements for evolution to occur. Responses A Sexual reproduction must occur.Sexual reproduction must occur. B Th...

15 minutes ago