A man with type A blood and a woman with type B blood have a child with type O blood. What are the genotypes of the man and woman?
What will be an ideal response?
AO and BO
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__________ relieve allergy symptoms by dampening
the effects of histamines. Fill in the blank(s) with the appropriate word(s).
Topographic features, such as mountains and valleys, influence the climate of a region
Indicate whether the statement is true or false
Forests help to regulate the global climate by
A) releasing oxygen B) absorbing carbon dioxide C) absorbing pollutants D) emitting ozone E) preventing soil erosion
How do birth control pills prevent fertilization?
A. They alter the uterine environment so that sperm cannot survive. B. They prevent implantation. C. They inhibit menstruation. D. They prevent follicle development and ovulation. E. The provide hCG, indicating that fertilization has already occurred.