The amount by which a machine multiplies an input force is called the . a.
efficiency factor
c.
mechanical advantage
b.
fulcrum
d.
resistance force

Please select the best answer from the choices provided

A
B
C
D

According to the loco mass the mass of reactants and products

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.

All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .