What are 3 important cells on a human

What is used to keep track of the gamates and possible offsprings combination

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 the interaction of two organisms where one is and the other is neither nor harmed.