The placenta allows
A) maternal blood to mix with fetal blood.
B) carbon dioxide and other wastes to diffuse from the maternal blood to the
embryonic blood.
C) oxygen and nutrients to diffuse from maternal blood to the embryo.
D) the fetus to enlarge without rupturing the mother's abdomen.
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Question 2) In genomic imprinting,
A) children copy their parents' behavior.
B) the same allele has a different effect if inherited from the mother or father.
C) a trait affects a structure found only in one sex.
D) genes on the Y chromosome are only expressed in males.
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Question 3) The greatest amount of carbon dioxide transported in the blood is in the form of
dissolved carbon dioxide.
Indicate whether the statement is true or false
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Question 4) The major body parts derived from mesoderm are the
A) respiratory tract, urinary bladder, and urethra.
B) epidermis, hair, nails, and glands of skin.
C) muscle tissue, bone tissue, and bone marrow.
D) nervous system and sense organs.
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Question 5) Carbon monoxide bonds to hemoglobin more effectively than does oxygen.
Indicate whether the statement is true or false
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Question 6) Fructose, glucose, and galactose are ___________.
Fill in the blank(s) with correct word
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Question 7) Sympathetic nerve impulses usually cause proportional degrees of vasodilation in the
afferent and efferent arterioles.
Indicate whether the statement is true or false
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Question 8) Judy runs 50 miles a week. She and her husband have been trying to conceive for three
years, with no luck. Her disturbed reproductive cycles and infertility are due to
A) increased synthesis of estrogens.
B) decreased secretion of adrenal androgens.
C) increased secretion of adrenal androgens.
D) decreased synthesis of estrogens.
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Question 9) Hemophilia A is
A) a defect in the clotting mechanism.
B) more common in females.
C) passed from affected males to their sons.
D) due to an X-linked dominant gene.
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Question 10) In a healthy body, the volume of water remains relatively stable at all times.
Indicate whether the statement is true or false
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