Niels Bohr - Biographical. Niels Henrik David Bohr was born in Copenhagen on October 7, 1885, as the son of Christian Bohr, Professor of Physiology at Copenhagen University, and his wife Ellen, nÃ©e Adler.
Opuntia is a large genus of plants native to North America and South America. All have succulent stems, some of them becoming woody with age. Stems may be cylindrical or flattened pads. Tiny, succulent leaves may be present on the newest growth (see photo below.) Most species are spiny.
The fruit of the prickly pear cactus (Opuntia ficus-indica) is called âtunaâ or âcactus apple.â This cactus is native to Mexico and, as it is not a cold-hardy plant, thrives only in USDA climate zones 9 and 10. There are a number of different cultivars, each of which produces fruits that vary from spineless, to spiny.exico is home to more than 100 different species of cactus that have edible fruits. Cacti come from the Cactaceae family and are native to both North and South America. These spiny, hairy, succulent plants have many uses in native cultures, from religious and medicinal to culinary applications.