Which cell structure is enclosed in a double membrane and is response for communicating with all other parts of the cell?

How many cells are our body made of ? ♡

What are some characteristics of a free enterprise economy?

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.