Cual es la diferencia entre un sistema heterogéneo y uno homogeneo

Which of the following is a question of morality? a.) delierately reporting false data b.) accidentally reporting false data c.) kepping a sloppy record of experimental observation d.) condition a drug experiment which will harm a lab rats

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

How does human environment effect the biosphere