Which group of elements shares characteristics with both metals and nonmetals?

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.