How did the pesticide spraying lead to pesticide resistance in the image below?   

Which biome receives large amounts of rainfall (that determines the type of vegetation that grows) and is warm year-round?

Please read the following scenario to answer the following questions.Michigan’s Isle Royale is an island located in Lake Superior that is 45 miles long and 9 miles wide. Ecologists estimate that the moose population on the island has been there since approximately the year 1900. The wolf population on the island, on the other hand, has been there only since the winter of 1949. Weather conditions had to be calm and cold enough for the lake to freeze so that the first wolves could make the passage over to the island. When the wolves arrived, they were greeted with a large moose population that had no predators. The moose population was at a dangerously high level but was kept in check by the arrival of the wolves. This “harmonious” pattern continued for at least 20 years.In 1982, the wolf population suddenly crashed because of a new canine virus believed to have been carried to the island carried on the shoe of a human traveler. While the wolf population size decreased from 50 to 14 individuals in a year, the moose population increased. However, the winter of 1996 was extremely harsh and the moose population experienced a major crash. More than 500 moose died during the winter months, reducing the population to less than 800 animals. What most likely happened after the wolves first arrived on the island?

The figure indicates that ________.

Which of the following statements is FALSE regarding the conclusions Darwin reached after his voyage of exploring the natural world?

Characid fishes are found naturally only in South America and Africa. Fossils of these fish are not found on any other continents. What is the most likely explanation of this distribution pattern?

The approximate age of the Earth is:

Populations of two coexisting species are both tertiary consumers in a community. What relationship may exist between these two organisms?

Plate tectonics has been responsible for instances of all of the following EXCEPT ________.

The image below represents__________________since_________________________.