Hakodate is a city and port located in Oshima Subprefecture, Hokkaido, Japan. It is the capital city of Oshima Subprefecture. As of July 31, 2011, the city has an estimated population of 279,851 with 143,221 households, and a population density of 412.83 persons per km². Read More
Green leaves and photosynthesis were once considered essential characteristics of plants. However, some plants have stopped performing photosynthesis and ... ...