Question

what is an example of one specific species?
seaweed
fish
blue catfish (ictalurus furcatus)

Explanation:

Species is the basic unit of biological classification. It refers to a group of organisms that can interbreed and produce fertile offspring. "Seaweed" is a general term for macroscopic, multicellular, benthic marine algae. "Fish" is a very broad category including many different species. "Blue catfish (Ictalurus furcatus)" is a specific scientific - named species.

Answer:

blue catfish (Ictalurus furcatus)