Phyllite formed under which metamorphic conditions

According to the cladogram, which organisms have roundworms as a common ancestor?

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?