You need to have a cavity filled so the dentist injects a local anesthetic into your gums. Local anesthetics reversibly bind to Na channels and block the movement of sodium ions. Using what you know about signals, explain why this action can keep you from feeling pain.

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

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.

How do ratio scale and diagrammatic scale work