If a lipid molecule contains at least one is unsaturated.

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.

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

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient