True or false (Gravity is an example of a non-contact force.)

Why do we perceive objects as retaining their brightness under different lighting levels?

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

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.