Archaea and Bacteria lack a membrane-bound nucleus.
Explanation:
Archaea, bacteria lack a membrane-bound nucleus. Meaning, they are both prokaryotes. Eukaryotes and Animalia are the opposite. They have membrane-bound nuclei.
The other members o the groups help them to survive by taking care of the pups.If it want for them maybe they would die.So the social or connection they have with them will help them to connect with them when they grow