Deleting account, Bye bye

24. how are vaccines used to keep people healthy?

100 points and brainlest its 6th grade work compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city,

Color blindness is a recessive trait. the gene for color blindness is on the x-chromosome. the family tree below shows the trait of color blindness. theonly unknown is the father in the first generation.