About 225 million years ago, north america and south american were part of one huge landmass, pangaea.

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. the only unknown is the mother in the first generation

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

Name the two stages involved in protein synthesis and explain what occurs in each of the two stages. be sure to also indicate where each process takes place. plz don't give one sentence answers : d