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During each menstrual cycle, _______ is/are shed through the cervix and vagina. tissue from the fallopian tubes ovarian cysts the thickened uterine lining unused hormones
answered
Mar 31, 2019
Biology
college
5
votes
55.2k
views
Write a mathematical expression for: the sum of twice a number n and 20. A. the fraction n over 2 then plus 20 B. 2n + 20 C. 2n minus 20 D. n + 2 times 20
answered
Nov 5, 2018
Mathematics
middle-school
3
votes
118k
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