The earth has a mass of about 6 × 1024 kg and orbits about the sun. as it orbits, it moves at over 60,000 miles per hour. with such great mass and speed, what keeps the earth from moving away from the sun and out of the solar system?
a. the sun's rate of rotation b. the speed at which the sun moves in the galaxy c. the sun's gravitational force d. the amount of heat that is continuously released from the sun

Aclient with legionnaires' disease is prescribed azithromycin, 500 mg on the first day, and then 250 mg on days 2 through 5. after completing the therapy, how many grams of the drug has the client received? enter the number only.

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.

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism