On day 21 of the menstrual cycle, most progesterone is secreted by the _______ in the ovary.
Fill in the blank(s) with the appropriate word(s).
Answer: corpus luteum
Biology & Microbiology
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Homeostasis provides what kind of environment?
a. positive b. relatively constant around a set point c. limiting d. changing e. chemical and physical
Biology & Microbiology
The coronary arteries are important because they serve the
A. intestine and liver. B. brain. C. heart. D. urinary tract. E. lungs.
Biology & Microbiology
thymus has the _____ rate of cell production in the body, but only ____% of all lymphocytes entering the thymus survive to becoming circulating T-cells
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Offshore financial centers are designed to attract
A) export-oriented industries. B) propulsive industries. C) foreign aid. D) secret, tax-sheltered monies. E) maquiladoras.
Biology & Microbiology