When did biologists confirm that living things are composed of cells?

a.1730s
b.1830s
c.1930s

Were you able to observe the nucleolus in any of the cells if so which ones

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.

Nucleic acids offer variability because they contain alternate forms of genes called .