While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. what must be the basal clade?

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

Dna replication or repair occurs in a cell in all of thw following situations except when

In which state was more than 100 billion tons of coal mined in 2005?