Answer:
Step-by-step explanation:
You need to know their Domain, Kingdom, Phylum, Class. Order, Family, Genus, and Species. You can differentiate them if they produce their own food or not. Cell structures and general structures may also help you identify these specimens.
You would not classify these organisms together. The first image depicts a deep sea creature, likely an octopus. The second shows a waterbear or a Tardigrade, which is a microscopic animal. The next shows a plantlike structure. And the final shows a sea anemone, which is an animal as well.
(This is the best help I can give to you, Goodluck)