What is it that erythroblastosis fetalis can not happen if the mother is RH negative?
A. baby has RH negative blood
B. dad has RH positive blood
C. mother has RH antigens
D. baby has RH antibodies
Select your answer:
Topics:
Renal Replacement Therapies Haematology Nasal Polyp Gastroenterology Nursing Circulatory and Lymphatic System Vaccines Physiology Health and Wellness Heart and Blood Vessels Anatomy: Muscle Skeletal Tissue Measles and Hib Discovery of DNA Epithelial Tissue The Musculoskeletal SystemOther quiz:
Ecology › ViewThe environment around Manchester, England, changed during the Industrial Revolution. How did this change affect peppered moths living in the area?
A. Natural selection favored moths with dark wings because predators could not see them on the soot-colored trees.
B. Natural selection favored moths with white wings that were easy for predators to see.
C. Natural selection favored moths with white wings because predators could not see them on the soot-colored trees.
D. Natural selection caused moths with white wings to become extinct.
Psychology › View
What is a theory?
A. a guess on how something works
B. a tested conclusion accepted as true
C. a story explaining how the world works
D. an assumption