The graph shows data from ice cores. What has happened to carbon dioxide levels over time? A. They have increased dramatically recently.

B. They have remained flat and steady.

C. They have decreased dramatically recently.

D. They have gone up and down with no general trend.

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.