What does viability mean, and how likely is a fetus to be viable at 22 weeks? At 26 weeks? Why would this vary depending upon whether a person lives in a developed or a developing country?
What is the main obstacle to viability even by the beginning of the third trimester?
What will be an ideal response?
Answer: This is when a fetus would be able to survive outside the womb. Survival is unlikely before 22 weeks, even with medical intervention. Even if babies do survive when they are premature, they are at greater risk for birth defects and disabilities compared to full-term babies. In developing countries, there is less access to medical supplies and facilities, so the age of viability is later than in developed countries (some time in the third trimester, depending on the country and its technology). The reason babies are so vulnerable even in the third trimester is their immature lungs.
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Rosie participates in a study assessing the effectiveness of a drug to treat osteoporosis. Throughout the study, neither Rosie nor the person administering the dosage knows whether she was getting the real medication or a placebo. Rosie is participating in a ____
a. blind design study c. field study b. correlational study d. double-blind design study
When listening to the radio, Ramona hears a song; she cannot immediately recall the band's name, but she is sure she knows the name. This is one example of:
a) encoding failure. b) interference. c) priming. d) the tip-of-the-tongue phenomenon.
According to a nationwide survey, ____percent of families who are headed by single women do not have enough food
A) 25 B) 35 C) 45 D) 55
In the ethnographic observation method,
A) scientists directly observe the behavior of animals and humans where it happens. B) scientists study sexual behaviors and customs that occur among ethnic groups. C) scientists send surveys or questionnaires directly to the participant's home. D) scientists intervene and influence the behavior of the participants.