Pathogens are physically forced out of the respiratory tract when a person coughs

List five ways we are indebted to phytoplankton

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

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.