D.They are primarily composed of wind transported material....its the ocean
Earth's Systems are land, water and air. When an underwater volcano erupts, lava can flow in the water (ocean) to form new land. That's an example of how these different systems interact. Also, gasses are released during an eruption which will go in the air.
Answer:
The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms. The host cell profited from the chemical energy the mitochondrion produced, and the mitochondrion benefited from the protected, nutrient-rich environment surrounding it.
Explanation:
