A circadian cycle is about ______ hours long

Parents should try and conceal their own anxiety when bringing their children to the

pediatrician for shots because children from around 10 months on use an attachment technique known as __________ to help them figure out what to do in new situations. Fill in the blanks with correct word

____________was the affliction in the Middle Ages in which people believed

themselves to be possessed by wolves. Fill in the blanks with correct word