The umbilical cord connects the
A. amnion and chorion
B. blastula and zygote.
C. heart and lungs.
D. embryo and placenta.
Answer: D
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Studies of children who attended Head Start generally show __________.
A. no significant benefits B. benefits for language and academic skills that mostly fade by the end of grade 1 C. enormous benefits, which last into adulthood D. more behavioral problems
Each year alcohol is implicated in about one third of all ______.
A. unintended pregnancies B. domestic abuse cases C. traffic fatalities D. violent crime
Jane planned a picnic the following weekend for 25 people at a park without a covered shelter. The long-term weather report called for a slight to moderate chance of rain. This plan best illustrates a decision
a. under certainty b. under risk c. under uncertainty d. influenced by the framing effect
On the pyramid of sciences, which science falls just above biology?
A) sociology B) psychology C) anthropology D) chemistry