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Flatworms (phylum Platyhelminthes) are simple animals that are slightly more complex than a cnidarian. Roundworms (phylum Nematoda) have a slightly more complex body plan. Segmented worms (phylum Annelida) are the most complex animals with worm-like body plans.
- What do roundworms and flatworms have in common?
- Which statement is true about both flatworms and roundworms?
- What are the similarities and differences between Taenia and earthworm?
- What is the difference between roundworm and tapeworm?
- What do roundworms and segmented worms have in common?
- Which describes the movement of a roundworm?
- Are roundworms that do not have circular muscular quizlet?
- Which of the following structures does a flatworm lack *?
- How do roundworms differ from flatworms?
- How do flatworms annelids worms and roundworms differ from each other?
- What are the difference between roundworms and earthworms?
- What are the differences between earthworm and tapeworm?
- Are earthworms roundworms or flatworms?
What do roundworms and flatworms have in common?
Similarities Between Flatworms and Roundworms
Some flatworms and roundworms are free-living, and some are parasitic. Both flatworms and roundworms are unsegmented worms. Both flatworms and roundworms are multicellular, mobile, invertebrate animals. Both flatworms and roundworms are heterotrophs.
Which statement is true about both flatworms and roundworms?
Which is true of both flatworms and roundworms? They both have radial symmetry.
What are the similarities and differences between Taenia and earthworm?
The similarity between them is that they both are that earthworms are decomposers and tapeworms are parasites.
What is the difference between roundworm and tapeworm?
Roundworms have a round body with tapered ends, whereas tapeworms have dorsoventrally flattened bodies. Tapeworms are composed of separable segments called proglottids, but roundworms do not have body segments. ... Roundworms have a complete digestive system but not the tapeworms.
What do roundworms and segmented worms have in common?
Most flatworms are parasites that obtain their food from a host animal. A parasite lives inside or on another living organism. ... Some are carnivores, some are herbivores, and some are parasites. Unlike flatworms or cnidarians, roundworms have a tube-like digestive system that has two openings.
Which describes the movement of a roundworm?
Roundworms move through the host's internal environment by thrashing their bodies using long muscles which only allow the parasite to move laterally. Roundworms cannot crawl.
Are roundworms that do not have circular muscular quizlet?
Describe the movement of roundworms. Thrashing movement. The do not have circular muscles, they have only muscles that run the length of their body; therefore, they thrash.
Which of the following structures does a flatworm lack *?
Structure and Function of Flatworms
They have a flat body because they do not have a coelom or even a pseudocoelom. They also lack a respiratory system. Instead, their cells exchange gases by diffusion directly with the environment. They have an incomplete digestive system.
How do roundworms differ from flatworms?
A flatworm has a thin, dorsoventrally flattened body. Roundworms are more cylindrical in shape and tapered to a fine point at one end. ... Flatworms generally live in bodies of water, while roundworm species can live either on water or in soil.
How do flatworms annelids worms and roundworms differ from each other?
Flatworms (phylum Platyhelminthes) are simple animals that are slightly more complex than a cnidarian. Roundworms (phylum Nematoda) have a slightly more complex body plan. Segmented worms (phylum Annelida) are the most complex animals with worm-like body plans.
What are the difference between roundworms and earthworms?
An earthworm has a full digestive system and its diet consists of dirt and plant matter. A roundworm has a definite digestive system and its diet consists of other animals and plants.
What are the differences between earthworm and tapeworm?
The basic difference between them is that Earthworms are segmented invertebrates belonging to the phylum Annelida, Tapeworms are flatworms belonging to the phylum Platyhelminthes, and Roundworms are parasitic worms belonging to the phylum Nematoda.
Are earthworms roundworms or flatworms?
Invertebrate animals commonly called "worms" include annelids (earthworms and marine polychaete or bristle worms), nematodes (roundworms), platyhelminthes (flatworms), marine nemertean worms ("bootlace worms"), marine Chaetognatha (arrow worms), priapulid worms, and insect larvae such as grubs and maggots.
