The cane toad, or rhinella marina, was introduced to the hawaiian islands in 1932 by sugar cane farmers. the farmers released the toads in their crops to control pests that were damaging the sugar cane. the cane toad has few natural predators because it secretes a poisonous toxin that kills the animals that consume it. as a result, the cane toad population thrived, and by 1935, it numbered hundreds of thousands. which role does the cane toad play in the hawaiian islands?

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false