To what does "descent with modification" refer? a. All species come from preexisting species and are changed over time.
b. All species come from preexisting species but stay basically the same.
c. Some species come from preexisting species and are changed over time.
d. Some species come from preexisting species but stay basically the same.

a. All species come from preexisting species and are changed over time.

is in the form atp or adenosine triphosphate

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.