Males of different species of the fruit fly Drosophila that live in the same parts of the Hawaiian Islands have different elaborate courtship rituals. These rituals involve fighting other males and making stylized movements that attract females. What type of reproductive isolation does this represent?

#Question id: 15725

#Section 2: Evolution

Alfred Russel Wallace (1823–1913), who was collecting specimens in the Malay Archipelago, had independently conceived that

#Question id: 10697

#Section 2: Evolution

Which of the following is correct observation of above species?

#Question id: 11251

#Section 4: Behavioural Ecology

The highest grade of sociality in the animal world is called:

#Question id: 3396

#Section 2: Evolution

The Galapagos finches were an important clue to Darwin's thinking about the origin of species. These finches are believed to have descended from a single ancestral species that colonized the Galapagos archipelago, America, over a short period of time. The Galapagos finches differ in their beak shape and size. Different species feed on seeds that vary in size and hardness. Which of the following is the most likely explanation for these patterns?

#Question id: 10627

#Section 2: Evolution

Following graph represent mortality rate of population of species A, B and C with their respective Age

There are following organism are correct