The major disadvantage of a blood-brain barrier is that ____.
A. many chemicals can easily diffuse into the brain
B. so much glucose is required to maintain it
C. certain required chemicals must be actively transported
D. viruses cannot escape
Answer: C
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What is a common way that teens are lured into sex work business through a pimp?
a. They are out of money and have solicited someone they consider a "friend" to pay them for sex acts, which in turn leads to a pimp/prostitute relationship. b. They are lured by acts of kindness and material gifts with no initial demands for sex until the relationship has progressed, at which point sex becomes involved. c. They are forcefully taken by a pimp and forced to perform sex acts until eventually they just give in and become accustomed to the way of life. d. They are lured in with promises of unlimited drugs and alcohol, at which point they are taken advantage of sexually and eventually have to continue to support their drug/alcohol problem.
In an A-B design, A= _________ and B= __________
Fill in the blank(s) with correct word
Three weeks after the 2004 Indian Ocean tsunami, prevalence of PTSD among children in Sri Lanka ranged between 14% and 39% and could be predicted by variables such as family loss and severity of exposure. This finding indicates that ____
a. ?children in Sri Lanka were below the norm of expected levels of PTSD b. ?children are particularly susceptible to stress and PTSD c. ?tsunamis are far more of a source of PTSD for children than being injured in an automobile accident d. ?tsunamis are far less of a source of PTSD for children than being injured in an automobile accident
In bright light, visual acuity is greatest when the visual image falls on the
a. cornea. b. fovea. c. blind spot. d. periphery of the retina.