i got a question, am new on minecraft and using this software, can u explain whats the difference between types(block, item, entity, etc.) and what of those option , have to choose for an animal model. thx. (sorry for my bad english)

hi am new using this progra , i want to create an animal on cubik, but when i go on model preference, what type do i choose? entity type? object type? can u explain please those types for modeling.

p.s. sorry for my bad english