light behaves differently with different materials specifically, light may be reflected, absorbed, or transmitted by a material. Explain what happens in each of these cases and give an example

In what for do plants utilize nitrogen? why do they need nitrogen?

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.

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing