How were Lamarck and Darwin’s ideas most similar

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. this is an example of speciation.

What was the land like over 500 million years ago? what was under the sea?

How does photosynthesis show the conservation of mass and energy?