What is the correct hierarchical order from more complex to less complex for structures involved in photosynthesis

What pattern of migration do whales follow?

Which event would lead to primary succession of a forest?

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit