If blood flow slows down does your heart have to work more or less?

The science for classifying and naming organisms is known as

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement