I don’t know the first two but the last one the thousands of subunits are called nucleotides
It would be D. being able to eat plants that survive in the changed environment
Hope this helps :))
They survive without water by entering a special mode, otherwise called as shriveling. They can lose even 95% of water in their body and still live, even though they would look like dead plants, they would actually be alive. In the absence of water, tardigrades use a sugar called trehalose, which becomes their source of life until they find some water.
