Which statement supports that the plasma membrane is a fluid mosaic model? O Phospholipids are hydrophobic
O Proteins are able to transport molecules with or without ATP.
Phospholipids and proteins that are part of the membrane are able to move around in the
bilayer
Glycoproteins can act as cell receptors.

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.

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

50 points! which of the following is an inference? a burning candle is extinguished when it is covered with a jar. the candle burns longer than expected in a jar that has a plant in it. a plant lives longer than expected in a jar that has a burning candle. there is more oxygen in the jar because there is a plant in it.