What would you call a species that first enters an environment in the early stages of succession? a. a pioneer species
b. an alien species
c. an invasive species
d. an endangered species

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

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.