The most likely cause of the beak variation is the food source of the finch, the break size and shape was adapted to most likely have easier and better access to food. <span />
Competition for available food resources (plants, seeds, insects, cactus etc) among themselves.
Explanation:
The ancestral finches were the seed eating stock that fed on seeds. These ancestral finches diversified according to different types of food due to competition for available food resources (plants, seeds, insects, cactus etc) among themselves. This led to diversification of ancestral stock and evolution of unique beak size and shape in the finch population of each of the Galapagos Islands.
Watershed conservation aims to protect wildlife in the watershed, restore vegetation, keep the watershed environment healthy, and in very dire cases may even have to relocate the watershed to a less polluted area
A unicellular organism is formed by a single cell. ... The circulation in unicellular organisms is carried out by the movement of the cytoplasm of the cell called cyclosis.
