One approach to reducing world hunger is to increase the yield of crops grown per acre of land. At the same time, many consumers are interested in organic foods to support a healthier lifestyle. Organic fertilizers that are classified as high-efficiency products can increase crop yield and protect the environment. As an individual organic farmer considers her options, which statement is both scientifically valid and unbiased?

How are organisms in the domain eukarya different from those in the domain archaea? o a. eukaryotes have a cell wall. o b. eukaryotes have mitochondria. o c. eukaryotes have more than one cell. o d. eukaryotes have dna. submit

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

What element is able to combine with itself and hydrogen to form large molecules ?