What is the female organ where embryos embed themselves and develop into a fetus? auterus bvagina covary dcervix?

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.