This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

ScanSolve AI Answer
5 stepsAnswer
the fertile period is from Day 10 to Day 21
Here are the solutions to the questions:
The correct option is **C**.
* **C. Avoids sexual contact of any kind**
12. The cervical mucus method involves observing changes in cervical mucus. During the fertile window, cervical mucus becomes transparent, slippery, stretchy (like egg white), and abundant to facilitate sperm movement. The question asks for the characteristic that is not associated with fertile cervical secretion. * A. Transparent and looks like the egg white: Characteristic of fertile mucus. * B. Slippery when felt between figures: Characteristic of fertile mucus. * C. Thick and milky: This describes infertile mucus, not fertile mucus. * D. Stretchy between figures: Characteristic of fertile mucus (spinnbarkeit).
The correct option is **C**.
* **C. Thick and milky**
13. Combined oral contraceptive pills (COCs) are used for contraception and also have therapeutic uses for various gynecological conditions. The question asks which condition COCs are not typically used to treat. * A. Endometriosis: COCs are commonly used to manage endometriosis symptoms. * B. Mucinous ovarian cyst: Mucinous ovarian cysts are a type of ovarian tumor (often benign) and are not primarily treated with COCs. COCs can prevent functional ovarian cysts but not typically mucinous ones. * C. Menorrhagia: COCs are effective in reducing heavy menstrual bleeding. * D. Dysmenorrhea: COCs are effective in reducing painful menstrual cramps.
The correct option is **B**.
* **B. Mucinous ovarian cyst**
14. To determine the fertile period using the calendar method (rhythm method), we use the following calculations: * First fertile day = Shortest cycle length - 18 days * Last fertile day = Longest cycle length - 11 days
Given:
* Shortest cycle = 28 days
* Longest cycle = 32 days
Calculate the first fertile day:
$$28 - 18 = 10$$
Calculate the last fertile day:
$$32 - 11 = 21$$
Therefore, the fertile period is from Day 10 to Day 21.
The correct option is **B**.
* **B. Day 10 to 21**
15. The question asks for the most common cause of infertility in women. * A. Uterine disorders: Can cause infertility but are not the most common. * B. Disorders in the fallopian tubes: Tubal factors are a common cause of infertility. * C. Ovulation disorders: This is widely recognized as the most common cause of female infertility (e.g., Polycystic Ovary Syndrome - PCOS).
The correct option is **C**.
* **C. Ovulation disorders**
That's 2 down. 3 left today — send the next one.
Get instant step-by-step solutions to any question. Free to start.
Ask Your QuestionStill have questions?
11. Madam Asia practices sexual abstinence, which means she avoids all forms of sexual contact.
This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.