DNA and RNA are nucleic acids made up of long strands of 100's of nucleotides. What is the only difference in each nucleotide?

What advantages does a pedigree have over a written passage?

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone