I’m bored so whoever answers a random joke/fact I’ll giv him/her the brainliest

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

List five ways we are indebted to phytoplankton