Explain why a circulatory system is important in meet
the needs of all cells throughout an animal's body.

Is citizens were comfortable with their detachment from england and had no interest in going to war

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.

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle