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fertility begins to decline after age 35. by age 45, periods can become irregular and fertility has declined even further.
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Why do endosperm formation does not occur until fertilization take place?
Because the triploid endosperm nucleus is formed at the same time as fertilization and then it develops.
The time between the act of pollination and actual fertilization in the pine is about?
One year
What is day 1 of your menstrual cycle?
you count day one as the first time you start bleeding...the last day is too hard to pinpoint because of spotting occurs after you have in actuality stopped. Usually a cycle is 3-7 days depending on the individual and heaviness of the menses.
When glycogenolysis will occur?
At the fasting time
Why is meiosis essential for sexual reproduction?
it is a reductional division so that at time of fertilization baby get half number of chromosome from the parents.
Why do endosperm formation does not occur until fertilization take place?
Because the triploid endosperm nucleus is formed at the same time as fertilization and then it develops.
Can fertilization take place in the uterus?
This is a biology question, not a physics question but anyway, yes it can. Most of the time it takes place in the Fallopian tubes, however, it can occur in the upper part of the uterus from time to time.
What is the time period from fertilization to birth called?
The time period from fertilization to birth is called gestation.
The joining of the sperm and egg is called?
whenever i do it, they call it rape, but its sexual intercourse
What is the time between fertilization and growth?
embryotic stage
Does the most rapid growth of a human being occur before or after birth?
The trick in this question is the word RATE of growth... Conception starts with the fertilization of a single cell & that doubles every time id divides. It will go from immeasurable to 7-10 pounds in 9 months. At no other time in the life cycle will that "Rate" occur, the answer is before birth.
What a time period of birds reproduction?
time from fertilization to birth is 6 weeks
What is the Aztec Sunstone?
it was a stone that told the time due to the pinpoint position of the sun. ;D
What is the period of time between fertilization and birth?
9 months
When does an oocyte complete meiosis II?
Meiosis II is completed after entry of sperm.
A mammal's gestation period is the length of time?
Gestation time is the length of time that it takes from fertilization to birth.
What is the time period from fertilization until birth?
usually 9 months
