Cistus, with its many hybrids and cultivars, is commonly encountered as a garden flower. The common name rockrose is applied to the species, a name also shared by the related genera Halimium, Helianthemum and Tuberaria, all in the family Cistaceae. The common name gum cistus is applied to resin-bearing species, especially C. ladanifer.
Quasars are part of a class of objects known as active galactic nuclei (AGN). Other classes include Seyfert galaxies and blazars. All three require supermassive black holes to power them.
Primates are a group of mammals that includes monkeys, apes, and humans. b. They are atypical as a group in that they follow a generalized form that is not. specialized for any specific adaptive strategy. c. In addition, primates occupy every environmental niche on the planet, from the tropics. to the artic. II.