Which of the following are part of the body s first line of defense against pathogens?
a. white blood cells
b. red blood cells
c. lymph nodes
d. mucous membranes

a. by using fur or clothes to trap heat energy near the body

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.