Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface.
Stanley Miller's experiments showed a pre-cellular life could have begun with the formation of lipids, but it should be noted that this is not necessarily true.
DNA has a double helix structure. The outer edges are formed by alternating deoxyribose sugar molecules and phosphate groups. The two strands run in opposite directions one going in a 3 to 5 the other going in a 5 to 3.
Answer:
B. grass growing on a newly formed dune
Explanation:
The primary succession is a process that occurs on newly formed environments. In this case, we have a newly formed dune. The dune is consisted only of sand, and it has no vegetation on it. If a grass manages to grow on the dune, than it will be a pioneer species as there are no other species present, thus it will start the primary succession on the dune. As the grass spreads out, it will create more and more biomass, as well as releasing certain chemicals in the dune, thus starting to create a soil, which in turn will provide conditions for more species to move in and start the second succession.
Answer: the first one
CCU is Proline (pro)
GAG is Glutamic Acid (glu)
AAG is Lysine (lys)
Explanation:
