There are seven main levels of classification, divided into five kingdoms.
Animal - Animals are multicellular eukaryotes whose cells are bound together by collagen.
Plant - Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae.
Fungi - A fungus is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.
Protist - A protist is any eukaryotic organism that is not an animal, plant, or fungus.
Monera (unicellular) - Kingdom Monera belongs to the prokaryote family. These are the oldest known microorganisms on earth.
I apologize if i’m wrong or if this isn’t what you are looking for!
I believe it’s the answer is c
B: they release hydroxide ions in solutions. i wasn't sure if you had meant acids/bases or DNA/bases. Glad you made it clear. You meant acid/bases.
hope this helps!!!
C. Death rate is smaller than birth rate