These small bodies are found inside the nucleus of the cell. made of proteins and rna, these structures assemble ribosomes. they are

These small bodies found inside the nucleus of the cell which are made of proteins and rna and assemble ribosomes are nucleolus.

The nucleolus is the prominent structure in the nucleus involved in the asssembly of ribosomes in the eukaryotic cells. It is the largest structure in the nucleus of a cell. It is the site of the synthesis and processing of ribosomal RNA with ribosomal proteins forming the subunits of ribosomes. It is then sent to the rest of the cell or the cytoplasm where the subunits combine to form ribosomes. This process of making ribosomes in the nucleolus and the cytoplasm of the cell is ccalled the ribosomal biosynthesis.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: