Cyanobacteria have been engineered to produce isobutanol directly. what advantage does this have over other alternative biofuels?
a. it is an inherently renewable fuel source.
b. multiple processing steps can be avoided.
c. they produce chemical energy through photosynthesis.
d. they make a biofuel alternative to gasoline.

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.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.