Which of the following statements concerning the vagina is false?
A) It serves as a passageway for the elimination of menstrual fluids.
B) It receives the penis during sexual intercourse.
C) It holds sperm prior to their passage to the uterus.
D) It forms the lower portion of the birth canal.
E) It loses a portion of its lining during menses.
E
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The concentration of a particular antibody within the blood is referred to as the antibody ________
Fill in the blank with correct word.
The respiratory system
a. obtains O2 from and eliminates CO2 to the internal environment b. includes the heart and lungs c. helps regulate the pH of the internal environment by removing acid-forming CO2 from the blood d. performs all of the functions listed above e. obtains O2 from and eliminates CO2 to the internal environment and helps regulate the pH of the internal environment by removing acid-forming CO2 from the blood
Hemoglobin
a. consists of a protein made up of four highly folded polypeptide chains and four iron-containing nonprotein, nitrogenous groups b. appears reddish when combined with O2 and bluish when deoxygenated c. can combine only with O2 d. has characteristics a and b e. has characteristics a and c
A baseball pitcher was hit on the side of the head by a line drive. When he was revived, he could not remember how many balls and strikes the batter had. This was because
A. short-term memory had not been converted to working memory. B. he lost both working and short-term memory. C. long-term memory had not been converted to working memory. D. he lost long-term memory. E. None of these choices is correct.