Definition of ERYTHROPOIESIS. : the production of red blood cells (as from the bone marrow). â erythÂ·roÂ·poiÂ·etÂ·ic \-Ëe-tik\ adjective.
Today, on a Moment of Science, how humans are like rats. One argument against scientific experiments involving animals is that physiological differences between humans and other species is so great that an animalâs response to a certain procedure or medication actually tells us nothing about the likely human response.eâre both warm blooded, and rats eat everything we doâ¦ and live where we live. More importantly, rats and humans often suffer from the same diseases. Thatâs because humans and rats have the same basic physiology, similar organs, and similar body plans.
The average life span of rats is 2â3 years; mice 1â2 years. The average body length of adult rats is 9â11 inches; mice 3â4 inches; with an average tail length of 7â9 inches in rats and 3â4 inches in mice.The average body weight for rats is 350â450 grams for a female, 450â650 grams for a male; mice 30 grams each sex.There have been a few adult male rats that weighed 2 pounds!or two small rats, use a 15â20-long gallon tank or 14x24x18 (approximate) wire cage (minimum sizes; preferably larger) for their housing. Two female mice may be housed in a 10 gallon tank, one male mouse in a 5â10 gallon tankâthis will provide adequate room for a house, wheel, feed dish, and water bottle.