B oxygen because they need it to survive
Synthesis of purine and pyrimidine bases in RNA and DNA
1. molecul of DNA 2. dna packed (coild) around histon h1 3.second stage of dna packing -solenoid thread 4. third stage of packing-chromosomal thread 5.chromosome-chromosomal threads are packed inside
Cell is a plant and organelle is a nucleus
Yes your ugly hoped this helped