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.
Difference between Rat and Rodent Tweet Key Difference: A rat is a medium-sized to large rodent, with a pointed muzzle, long slender and hairless tail, and dexterous forepaws. Rodents are mammals that are part of the Rodentia order under the Mammalia class. The terms rat and rodent are often confusing for many people as there are many similarities between a rat and a rodent. This is because Rats are actually rodents. Rodents are mammals that belong the Rodentia order, which rats are part of. Hence, it be very confusing. However, one should keep in mind that although all rats are rodents, not all rodents are rats. The Rodentia order has over 2,277 species. A rat is a medium-sized to large rodents, generally described as pigeon-sized.