Phospholipids are built like triglycerides but one of the fatty acids is replaced by a
phosphate head. how does this change in structure affect the ability of this
molecule to dissolve in water? in biological systems, how are phospholipids used?

The reaction q+r2=r2q is found to be first order in r2 and

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic