David and Daniel are twins who are genetically identical and are known as __________ twins. Annabelle and Timothy are also twins, but they are __________ twins
a) monozygotic; identical
b) dizygotic; fraternal
c) monozygotic; dizygotic
d) dizygotic; monozygotic
Answer: c
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What best describes the problem-solving approach of the concrete operational thinker?
a. Systematic b. Scientific c. Trial and error d. One-step analysis
Mark interviews a group of 5-year-olds, a group of 10-year-olds, and a group of 15-year-olds, and asks them what they plan to be when they finish school. Mark is using:
a. a cross-sectional research design b. a longitudinal research design c. a confounded research design d. a multifactor research design
From 4 to 6 months into the second year, angry expressions __________ in __________
A) decrease; both frequency and intensity B) increase; intensity but decrease in frequency C) increase; both frequency and intensity D) increase; frequency but decrease in intensity
According to Havighurst's view of career development, children begin their occupational cycle as early as age 5, when they begin to identify with a worker who performs a job that interests them
Indicate whether the statement is true or false