ANTA01H3 Lecture : ANTA01H3F.docx
Document Summary
Adaptation: a feature of an organism that increases the likelihood of its survival and reproduction in a particular environment. Adaptive radiation: the evolution of multiple divergent species from a single less specialized ancestral species. Niche: the role of a species in its environment. First introduced by darwin in his book descent of man in 1871. Selection on features or behaviours associated with mating. Generally takes two forms: 1) male-male competition, 2) female choice. A change in dna can refer to changes in chromosome number or structure . Changes in the genetic material passed on to the next generation just as a result of random chance in which variants get passed on. Changes in the frequency of variants in a population as a result of subdivision. Differences in the frequency of variants in a population as a result of random chance in which members start a new population.
