Nathan, seven-year-old and a proficient swimmer, is at the beach. Water safety tips recommend that
A) it is safe to leave him by the water.
B) he should be wearing floatation devices.
C) he should be supervised at all times.
D) both B and C
D) both B and C
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Lead exposure in early childhood has long-term effects that cannot be brought down using mineral and nutritional treatments. What are those effects?
A. cognitive, attentional, and behavioral difficulties B. hearing problems C. vision problems D. delayed motor development
Suppose that you are leading a group project. Research suggests that, in order for your group to be as effective as possible, you should ____
a. give people complete confidence in the group by telling them never to criticize any ideas that are raised in group discussions b. require group members to brainstorm all ideas collaboratively as a team, rather than to think up ideas independently c. have different people "specialize" in different tasks or content areas d. encourage in the group a sense of being on the moral high ground
Our first impression of other people is influenced by:
A. figure-ground B. principles of perceptual organization C. controlled process D. their facial features
All of the following statements describe the epididymis EXCEPT: a. It is a comma-shaped organ that sits on top of the testicle. b. It is where sperm can be stored for several months
c. If uncoiled, it would be about 20 feet long. d. It is the place where sperm mature.