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.
Through the loss of Opuntia cacti, the cactus moth threatens native habitats and agriculture. Prickly pear is a source of food for birds and wildlife and represents a major plant genus of desert ecosystems in the southwestern U.S. and Mexico.hrough the loss of Opuntia cacti, the cactus moth threatens native habitats and agriculture. Prickly pear is a source of food for birds and wildlife and represents a major plant genus of desert ecosystems in the southwestern U.S. and Mexico.