7.5 micrometers
23
A typical human red blood cell has a diameter of about 7-8 micrometers, while a human hair ranges from about 17 to 181 micrometers in diameter, depending on the individual and hair type. Therefore, it would take approximately 2 to 25 red blood cells lined up side by side to match the diameter of a single hair.
The diameter of a human hair typically ranges from about 17 to 181 micrometers. Red blood cells have a diameter of approximately 6 to 8 micrometers. Therefore, it would take about 2 to 30 red blood cells lined up side by side to equal the diameter of a single strand of hair, depending on the thickness of the hair.
Well they are, on average, 6-8 microns in diameter. So after converting to nanometers (1 nm = .001 microns), they are about 6000-8000 nm in diameter. This is the about the same diameter as the capillaries in your body, meaning only one red blood cells can fit through at a time.
100
In a goldfish's tail, capillaries are quite narrow, typically around 5 to 10 micrometers in diameter. Given that a red blood cell is approximately 6 to 8 micrometers wide, usually only a single red blood cell can pass through a capillary at a time. Therefore, side by side, it's unlikely that more than one red blood cell can traverse the capillaries simultaneously.
The human sperm cell has 23 chromosomes. White blood cells have 46 chromosomes. Mature red blood cells to not contain a nucleus, and therefore has no chromosomes. Platelets are cell fragments and also do not contain nuclei.
about 4 million red blood cells in a o.
23 sets of 2; 46 chromosomes.there is 5
A egg cell is 60-70 micro meters long(2) millimeters
The diameter of a grain of sand typically ranges from about 0.05 mm to 2 mm. The average diameter of a human cell is approximately 10 to 30 micrometers (0.01 to 0.03 mm). Taking an average sand grain diameter of 1 mm and an average human cell diameter of 20 micrometers (0.02 mm), the ratio is 1 mm / 0.02 mm = 50. Therefore, the diameter of a grain of sand is about 50 times longer than the diameter of the average human cell.
The average size of a human cell varies quite a lot. a single nerve cell can be up to a meter long while a cheek cell averages about 50 micrometers or .05 mm. the average cell though is between 10 micrometers and 100 micrometers