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that's answer is SCIENCEPOWER TEXTBOOK 8 or Just Guess.
if you have textbook it was page 53~55
Hopefully you can better ;)
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How often does the digestive tract cells replace themselves?
The body is constantly replacing itself. It was once believed to be over a seven to eight year period, depending if you were male or female but biologists are hesitant to put a true time on it but rather agree that it is an ongoing process.
What cells replace themselves every three days?
A red blood cell lives about 120 days. Each day the normal adult produces almost 200 billion new red blood cells to replace the 200 billion that are removed from the circulation due to old age.
Which cells in your body are never replaced?
Cells
Do cells move?
No, Cells cannot move around in your body. But when your cells die, they go to the surface of your skin. When you scratch your skin, the dead skin falls off, and news cells replace the dead cells.
Why do all cells need mitochondria?
Mitochondria are an energy supply for cells. For example, human and human fat cells only have a small amount of mitochondria as they do not move or do much. On the other hand, sperm cells have many mitochondria as they have to transport themselves through the vagina to the awaiting egg cell.
How often does the digestive tract cells replace themselves?
The body is constantly replacing itself. It was once believed to be over a seven to eight year period, depending if you were male or female but biologists are hesitant to put a true time on it but rather agree that it is an ongoing process.
What is the fastest human dividing cell?
The fastest dividing human cells are epithelial cells. These form the skin and line the cavities of the body. They need to divide quickly and replace themselves due to physical wearing away of the cells. Skin cells divide once every 20-30 minutes
What cells replace themselves every three days?
A red blood cell lives about 120 days. Each day the normal adult produces almost 200 billion new red blood cells to replace the 200 billion that are removed from the circulation due to old age.
How many functional sperm cells are normally produced?
The sperm mother creates thousands of sperm cells every minute
Receptor cells for your sense of reproduce themselves every week or two?
Taste
Why are skin cells going through mitosis constantly?
To replace the millions of somatic cells that are destroyed every second.
Does metabolic turnover replace red blood cells every 120 days?
Yes, red blood cells are recycled every 100-120 days.
How often are cells made and do the old ones die?
Cells die every second in the body. Over a million cells are made every minute in your body. This is how you heal and grow. The cells naturally renew themselves after a certain period of time and are expelled out of the body.
What is the number of days it takes to shed and replace all skin cells?
You grow an entirely new set of skin cells every seven years.
How often do humans replace all of their cells?
every six to 14 days u should have learned this in 7th grade
When should you replace cabin filter?
Every 30,000 miles or three years. its normally every 15,000 miles. its worth it youll get better gas milage. dont wait for 30k.
How often do red blood cells replace themselves?
Your stomach cells are exposed to the harsh stomach acids, if they were not replaced as rapidly as they are the stomach acid would not be able to be contained thus digesting itself and exposing the rest of your body to the acid. As for the red blood cells our body can only replace about 1% of them per day, essentially there are around 20-30 trillion red blood cells in your body, replacing 200-300 billion cells that are so vital is no easy task. But its easy to assume that only a fraction are replaced every day to use each cell to its fullest life before recycling it. On a side note every 7 years your a totally new you with 100% new cells.
