Which of the following statements accurately describes why a mother and her child can have different blood types?
A. The two blood systems of the placenta remain separate throughout the pregnancy.
B. The fetal arteries connect to the mothers circulation system, but the maternal hormones prevent cross-contamination of blood.
C. The placenta's only function is to bring oxygen and nutrients to the fetus, with no return transfer to the mother.
D. The placenta's only function is to transfer fetal waste away from the fetus to the mother, with involvement of the fetus' blood supply.
Answer: A
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Which of the following statements is universal, in that it holds for all children?
a. ?Cultural and social expectations are the same. b. ?Temperament and energy level are the same. c. ?Rate of language growth in vocabulary is the same. d. ?Children go through the same developmental stages.
To improve transition times, preschoolers should be trained to stand quietly in straight lines and to walk silently from area to area without making a sound
a. True b. False Indicate whether the statement is true or false
Which of the following factors has been responsible for the growth of cognitive-behavior modification?
a. dissatisfaction with behavior modification b. increased awareness of classical conditioning c. development of psychoanalytic theory d. focus on neurology
Myopia refers to the situation when:
a. Far objects are seen with greater acuity than near objects. b. Near objects are seen normally while distant objects are distorted. c. The cornea is abnormally shaped causing light to be refracted unevenly on the retina. d. All of the above.