Which statement about Rh factor incompatibility is true?
A. Rh-positive blood is recessive and Rh-negative blood is dominant.
B. When the blood type of the mother and fetus differ, blood transfusions are usually required.
C. First-born children are rarely affected by Rh factor incompatibility.
D. Rh-positive babies are routinely given a vaccine at birth to prevent the buildup of harmful Rh antibodies.
Answer: C
You might also like to view...
A child who lacks "theory of mind" fails to understand which of these?
a. If you are a boy and you have a brother, then your brother also has a brother. b. A liquid that is poured into a different-shaped container still has the same volume. c. Some people know things that other people don't know d. Objects continue to exist even if no one is looking at them.
Mike and Jeff are brothers who have just moved with their parents into a beautiful old house. Mike soon discovers that if he flushes the toilet while Jeff is taking a shower, it will cause the water in the shower to become scalding hot. Naturally, Jeff screams as his reflexes cause him to leap backward in pain. After Mike has repeated this procedure several times, Jeff has begun to twitch
involuntarily every time he hears any toilet flush. In this example, jumping backward to the pain of the hot water would be the a. conditioned response (CR). b. conditioned stimulus (CS). c. unconditioned response (UR). d. unconditioned stimulus (US).
Most of the characteristics of psychologically less healthy people are simply the
converse of the characteristics of psychologically healthy people. Which characteristic is the same? (a) judgment (b) uniqueness (c) ability to focus attention (d) giving and receiving love and affection (e) understanding of the world
Which is NOT an advantage of correlational research compared to experimental research?
a. Some problems cannot be studied using an experimental design. b. Researchers can collect more information in a correlational study. c. Correlational studies allow the researcher to draw causal conclusions. d. Researchers can test more relationships between variables than they can in experiments.