What is the main function of the heart

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

Crossing over is a method of (blank)?