One difference between dna and rna is that a) adenine is found only in rna. b) guanine is found only in dna. c) cytosine is found only in rna. d) thymine is found only in dna.

Select three sports that require participants to be highly fit before the beginning a: snowboarding b: skydiving c: rock climbing d: bungee jumping e: free diving f: hiking

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Which organelle breaks down sugar molecules that supply energy to the cell ?