Active transport is different from passive transport in that active transport involves

Active transport refers to when molecule travels from a region of lower concentration to a region of higher concentration against the concentration gradiet. Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration

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 tricuspid valve is present between right atrium and right ventricle