Animalscaretips
- Are planarians parasitic?
- Why are planarians and flukes called flatworms?
- Are flukes free-living or parasitic?
- Which of these are flatworms?
- Do leeches have parasites?
- Is Ascaris a parasite?
- What are the structures of a planarian?
- What is a flatworm quizlet?
- What does the name platyhelminthes mean?
- Can humans get flukes?
- What type of fish is a fluke?
- What class of flatworms includes flukes?
- Is Ascaris a flatworm?
- Are roundworms invertebrates?
Are planarians parasitic?
The majority of members of the phylum Platyhelminthes (the flatworms—a phylum that includes the notorious tapeworms and flukes) are parasitic; planarians are labeled the only free-living (non-parasitic) flatworms in the bunch.
Why are planarians and flukes called flatworms?
Explain why planarians and flukes are called flatworms. They are called this because their dorsal and ventral sides are flat. ... The anterior or head end of the flatworms has a concentration of sensory structure.
Are flukes free-living or parasitic?
fluke, also called blood fluke or trematode, any member of the invertebrate class Trematoda (phylum Platyhelminthes), a group of parasitic flatworms that probably evolved from free-living forms millions of years ago. There are more than 10,000 species of flukes.
Which of these are flatworms?
flatworm, also called platyhelminth, any of the phylum Platyhelminthes, a group of soft-bodied, usually much flattened invertebrates. ... The phylum consists of four classes: Trematoda (flukes), Cestoda (tapeworms), Turbellaria (planarians), and Monogenea.
Do leeches have parasites?
Most leeches (annelid class Hirudinea) are bloodsucking parasites that attach themselves to vertebrate hosts, bite through the skin, and suck out a quantity of blood. Other than the nuisance effect of their biting, their medical significance is generally minimal.
Is Ascaris a parasite?
Ascaris is an intestinal parasite of humans. It is the most common human worm infection. The larvae and adult worms live in the small intestine and can cause intestinal disease.
What are the structures of a planarian?
Planaria have three germ layers (ectoderm, mesoderm, and endoderm), and are acoelomate (they have a very solid body with no body cavity). They have a single-opening digestive tract; in Tricladida planarians this consists of one anterior branch and two posterior branches.
What is a flatworm quizlet?
Flatworms are soft, flattened worms that have tissues and internal organ systems. They are the simplest animals to have three embryonic germ layers, bilateral symmetry, and cephlization.
What does the name platyhelminthes mean?
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.
Can humans get flukes?
Liver flukes are parasites that can infect humans and cause liver and bile duct disease. There are two families of liver flukes that cause disease in humans: Opisthorchiidae (which includes species of Clonorchis and Opisthorchis) and Fasciolidae (which includes species of Fasciola).
What type of fish is a fluke?
Flounder or “Fluke” is a flatfish. Flatfish are found all over the world and there are around 540 species. True Flounders are found in Northern waters and our Flounder is caught on the Northern East coast of the United States. All flatfish have both eyes on one side of the head.
What class of flatworms includes flukes?
Trematoda is a class within the phylum Platyhelminthes. It includes two groups of parasitic flatworms, known as flukes. They are internal parasites of molluscs and vertebrates. Most trematodes have a complex life cycle with at least two hosts.
Is Ascaris a flatworm?
While there are plenty of free-living flatworms and roundworms, there are parasitic forms of both flatworms and roundworms that cause disease in humans. ... Roundworms that cause disease include Ascaris, a large intestinal worm that can grow to the size of a pencil, as well as hookworms and whipworms.
Are roundworms invertebrates?
Roundworms are invertebrates in Phylum Nematoda. This is a very diverse phylum. It has more than 80,000 known species.
