During which phase of mitosis are chromosomes aligned in the center of the cell?
A. Telophase
B. Anaphase
C. Metaphase
D. Prophase
Answer: C
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Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "A" relative to the RBC?
A. Isotonic solution B. Hypertonic solution C. Hypotonic solution
All of the following changes are commonly observed in the cardiovascular system in response to aging EXCEPT
a) decreased cardiac output. b) increased compliance of the aorta. c) loss of cardiac muscle strength. d) decline in maximum heart rate. e) increased systolic blood pressure.
Placental estrogen reduces uterine motility during pregnancy.
Answer the following statement true (T) or false (F)
Match each term with its definition or description.
a. menses b. secretory phase c. ovulation d. proliferative phase e. estrogen f. progesterone g. testosterone h. FSH i. LH j. menarche 1. _____ Male sex hormone 2. _____ Part of the female reproductive cycle from the end of menses to ovulation 3. _____ Term for the first menses 4. _____ Pituitary hormone that stimulates the development of an egg follicle 5. _____ Release of the egg by the egg follicle 6. _____ Hormone released by the corpus luteum 7. _____ Ovulating hormone 8. _____ Term for menstrual flow 9. _____ Hormone that is released by the ovary and reaches its highest concentration during the proliferative phase of the female reproductive cycle 10. _____ Part of the female reproductive cycle that begins at ovulation and ends at the beginning of menses