Which immunoglobulin class, found in blood, lymph, and the intestine, can cross the placenta and to protect a fetus?

What body systems are involded in sleep homeostasis

How does drinking alcohol or using drugs put a person at risk for hiv infection? a.they improve judgment, which makes it more likely for people to engage in risky behavior. b.they impair judgment, which makes it more likely for people to engage in risky behavior. c.they impair judgment, which makes it less likely for people to engage in risky behavior. d.they improve judgment, which makes it less likely for people to engage in risky behavior.

Compare and contrast direct and indirect pressure and list 3 examples for each