The answer is to fill different niches.
<span>Adaptive radiation is the process of development of new forms
of organisms from an ancestral species. <u>When an environment changes or some new
niches open, speciation from the ancestral species occurs. </u>New species have morphological and
physiological adaptations which allow them to exploit a whole range of
divergent environment.</span>
Answer:
Direct democracy or pure democracy is a form of democracy in which people decide on policy initiatives directly. The earliest known direct democracy is said to be the Athenian democracy in the 5th century BC, although it was not an inclusive democracy: it excluded women, foreigners, and slaves.
Purdah or pardah (from Persian: پرده, meaning "curtain") is a religious and social practice of female seclusion prevalent among some Muslim and Hindu communities in South Asia.[1] It takes two forms: physical segregation of the sexes and the requirement that women cover their bodies so as to cover their skin and conceal their form. A woman who practices purdah can be referred to as pardanashin or purdahnishan.
