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Cullen Fay

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3y ago

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Why do gymnosperms do not need water for fertilization?

Gymnosperms do not need water for fertilization because their male gametes are carried by pollen grains, which can be transported by the wind. This allows for fertilization to occur without the need for water.


What two processes occur throughout the menstrual cycle?

Throughout the menstrual cycle, two key processes occur: the ovarian cycle and the uterine cycle. The ovarian cycle involves the maturation of follicles and the release of an egg during ovulation, while the uterine cycle prepares the endometrium for potential implantation of a fertilized egg. If fertilization does not occur, the uterine lining is shed during menstruation, marking the start of a new cycle. These processes are regulated by hormonal changes that occur throughout the cycle.


What happens to the thickened uterine lining fertilization if does not occur?

The woman dies and the body consumes it self


How long does the menstrual cycle last if fertilization does not take place?

The menstrual cycle typically lasts 28 days - but everyone's cycle is different. If fertilization does take place then there is no menstrual cycle, this would continue into pregnancy.


On what day is fertilization likely to occur?

Fertilization is most likely to occur during ovulation, which typically happens around the middle of a woman's menstrual cycle. The egg is released from the ovary into the fallopian tube, where it can be fertilized by sperm.


Can fertilization occur anytime during a menstrual cycle?

Fertilization can only occur during a specific window around ovulation, which typically happens approximately 14 days before the start of the next menstrual period. Sperm can survive in a woman's reproductive tract for up to five days, so if intercourse occurs in the days leading up to ovulation, fertilization is possible. However, outside of this fertile window, the chances of fertilization are significantly lower.


When does fertilization occur during the gymnosprem life cycle?

Fertilization in the gymnosperm life cycle occurs when the pollen grain lands on the female cone and the male gametes fertilize the egg cell within the ovule. This typically happens after the pollen grain has been carried by wind to the female cone.


What role does ovulation play in the menstrual cycle"?

Ovulation is the release of an egg from the ovary, which typically occurs around the middle of the menstrual cycle. It is a crucial step in the menstrual cycle as it is necessary for fertilization to occur. If the egg is not fertilized, it will disintegrate and be shed during menstruation.


What happens to the ovum after ovulation in the menstrual cycle?

After ovulation in the menstrual cycle, the ovum travels down the fallopian tube towards the uterus. If fertilization does not occur, the ovum disintegrates and is shed along with the uterine lining during menstruation.


How does the uterus change during the menstrual cycle?

During the menstrual cycle, the endometrium of the uterus thickens in preparation for a possible pregnancy. If fertilization does not occur, the endometrium sheds during menstruation. The uterus also contracts to help expel the menstrual blood.


In a fern's life cycle when does fertilization occur?

Fertilization in a fern's life cycle occurs when sperm from the male gametophyte fertilizes an egg in the female gametophyte, usually happening after the sperm swims to the egg in a film of water.


What hormone is produced during the luteal phase of the menstrual cycle?

Progesterone is the hormone produced during the luteal phase of the menstrual cycle. It is responsible for preparing the uterine lining for potential implantation of a fertilized egg. If fertilization does not occur, progesterone levels drop, leading to menstruation.