The rock shown below has a layering of black and white bands. The light bands and dark bands contain different mineral crystals. In what type of environment did this rock sample most likely form?

c.more precipitation,but only when emission levels.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.