The carbon that plants need for photosynthesis comes a. carbon molecules dissolved in water. b. carbon dioxide gas in the atmosphere. c. carbon molecules that the plant produces.

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.