Final answer:
The organisms pictured here are roundworms, also known as nematodes. Roundworms are a type of worm that have long, round bodies and do not have segmented bodies like other worms.
Step-by-step explanation:
The organisms pictured here are roundworms, also known as nematodes. Roundworms are a type of worm that have long, round bodies and do not have segmented bodies like other worms. They are classified in the phylum Nematoda and are the most abundant group of organisms on Earth.