Each cycle of sleep during a typical night tends to be about

Rashid and Varsha are seeking fertility treatment and were informed by their physician that Rashid's sperm count is low and the quality is poor. Which of the following suggestions were made to help increase his sperm production and quality?

a. Quit smoking, decrease alcohol consumption, and do not abuse drugs. b. Start a calcium regimen, consume more iron, and take a multivitamin. c. Exercise daily, increase caffeine consumption, and reduce stress. d. Avoid wearing boxer shorts and switch to tighter underwear.

Children learn language from adults with the help of __________

a. visual symbols b. child-directed speech c. explicit memory cues d. linguistic modifiers