A student drew this model to show the gas exchange in the human body. What strengths and weaknesses do you see in your improved model?

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.

condenser is used to focus in the light microscope.