Which of the following is a balanced equation.

Helpp

What protects the lining of the stomach from acidic gastric juices?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

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.