Pedro is infected with the bacteria Streptococcus pneumoniae. Pedro's white blood cells generate what substance in response to the Streptococcus pneumoniae to help Pedro's body fight off the infection?
A. antibodies
B. antigens
C. antidotes
D. antibactercides
Answer: A
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Robin has basic sensory, cognitive, and motor structures that allow her to see, pick up, and move her toys. When she shakes her rattle and it makes a pleasing sound, her mother laughs and says, "Good girl.". Later, Robin picks up the rattle again, watching her mother for a positive reaction. According to the Theory theory, Robin is
a. testing her predictions based on previous experience. b. gazing and concentrating. c. seeking parental warmth. d. acting on an innate understanding of the world.
The herpes simplex virus responsible for cold sores and genital herpes can produce a type of secondary encephalitis
a. True b. False Indicate whether the statement is true or false
Baby Evan is generally shy, fearful, and timid. His temperament would be classified as
A) easy. B) difficult. C) inhibited. D) melancholic.
Children diagnosed with attention deficit / hyperactivity disorder tend to be
A. popular with other children because of their "acting out" B. no more or less popular than other children C. unpopular with other children D. uninterested in socialization