Ovulation typically occurs days before the menstrual period begins. question 90 options: 7 10 20 14

The correct answer is D. 14

Explanation

Ovulation is a phase of the menstrual cycle that occurs on day 14 of the menstrual cycle. This means the evolution occurs in the middle of the menstrual cycle that lasts 28 days and due to this, it occurs14 days after the first day of menstruation and 14 before the beginning of next menstruation. In this phase, the ovule or egg completes its maturation and is transferred to the uterus through the fallopian tubes. Additionally, the uterus is covered and prepared for a pregnancy, this makes the woman be in the most fertile phase to get pregnant; also this phase accompanied by high hormonal levels. So, the correct answer is D. 14

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.