Shown below is a concept to define, followed by the genus that has been selected for the definition.Please choose the differentia that best COMPLETES the definition.(The definition might not be perfect, but choose the BEST one.) camera: a device

A) used to take pictures
B) handheld
C) zoom lens
D) consists of plastic, glass and metal components
E) digital

Yesterday Professor Eaton asked children of different ages (6 through 12) to list their favorite foods, and then compared the results for different ages. This is an example of which kind of study?

A) double-blind
B) single-blind
C) longitudinal
D) cross-sectional

Which of the following is most likely to lead to an increased preference for salty tastes?

A) prolonged experience with a low-fat diet
B) repeated nausea
C) damage to the adrenal glands
D) damage to the lateral hypothalamus

Is argument by analogy a type of induction or deduction?

A) neither induction nor deduction
B) either induction or deduction, depending on the subject matter
C) either induction or deduction, depending on whether the argument is valid
D) induction
E) deduction

_____ is a complex molecule in the cell's chromosomes that carries genetic information.

A) RNA
B) DNA
C) Ribosome
D) Polysome

Which type of study is time-consuming,expensive,and has problems associated with attrition?

A) Longitudinal
B) Cross-sectional
C) Interview
D) Clinical

Three-year-old Zara calls all four-legged animals "kitties." Her tendency to fit all four-legged animals into her existing conception of a kitten illustrates the process of

A) conservation.
B) assimilation.
C) accommodation.
D) egocentrism.