How have some living things adapted to their eco system

Which incident would result in primary succession instead of secondary succession?

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )