A fertilised egg (zygote) has a diameter of 0.01 cm. At birth the average baby measures 50 cm in length. Calculate the change in order of magnitude of length from fertilisation to birth.

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Explain nonnuclear inheritance. ~ ap biology

Monitor and apply fix up stratorgies