Sara just found out that her sister conceived about seven days ago. She rushes to find a book on pregnancy so that she can learn more about it. The book says that around the seventh day of pregnancy the cells of the zygote begin to:

What is genetic variation? -(a) each individual in a population has slightly different genes. -(b) some individuals in a population have more genes than others. -(c) each population of a species has slightly different genes. -(d)some populations of a species have more genes than others.

The cellular plasma membrane is selectively permeable, which means some materials move through it while others cannot. the movement of materials into and out of the cell is called membrane transport. this activity will you identify the different mechanisms of membrane transport

Which step is the same in both forms of fermentation, as well as in cellular respiration?