- Cephalopods show a much higher degree of structural and behavioral complexity than other groups of molluscs
What factors triggered the evolution of these changes? A rich fossil record shows that once they were very common
and even dominant in some environments. Now there are only about 650 living species of cephalopods, far fewer
than gastropods Were cephalopods successful? What do you think happened along the way?

Which plant has a visible leaf modification that will it conserve water in extremely dry environments?

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

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?