How do we know that the horse and the donkey are not of the same species? they do not have similar morphology. they are unable to interbreed. offspring of a horse and donkey have a unique morphology. offspring of a horse and donkey are unable to reproduce.

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

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.