Like DNA, RNA polymers are make up of chains of nucleotides. The sugars they are made up of; a five carbon ribose sugar.
Or Pentose Sugar.
Not sure about the answer but I think its the size of the system
Answer:
Okay. Adelie penguin, Crabeater (?) seal and emperor penguin = krill
Leopard Seal, Weddell seal = fish
Toothed whales will eat a lot of stuff, it's a genus, but a common food is = squid
Baleen (?) whale = phytoplankton, other zooplankton
Parasite or host... Whales have barnacles but that's is the only "host" on this list. I listed food by matching the predators to prey in the list, sorry if it doesn't help, maybe be more clear?
A. They are organic and found in living things