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Flatworms
The phylum Platyhelminthes (aka flatworms) are rather primitive invertebrates that can be either parasitic or non-parasitic depending upon the species. They have no body cavity, no circulatory organs and no respiratory organs. Questions about flatworms can be asked and answered here.
383 Questions
What are some questions i should have about flatworms?
How did flatworms come to be?
How many species of worms are there in the world?
What are some different species of worms?
Kayla
Only some flatworms, usually the smaller species, have small "hairs" called cilia on their skin.
Where can one purchase a Fluke 337?
The Fluke 337 is a clamp meter. It can be purchased directly from Fluke. MCM Electronics is also an authorized dealer for Fluke products, as is MAT Electronics.
Why dont most parasitic flatworms need a complex digestive system?
Parasitic flatowms typically live in the digestive system. Surrounded by pre-digested nutrients, they can easily absorb basic nutrients that they need to maintain homeostasis. In other words, they are borrowing the host's digestive system.
What are some three common characteristic of flatworms and roundworms?
Here are some characteristics of flatworms:
- They have flat bodies and are very thin.
- They have both an anterior and posterior head.
- They are invertebrates with bilateral symmetry.
- Some flat worms are parasites.
No it isn't. If it was a mammal it would have live babies and breastfeed its young, but a flatworm lays eggs.
What are the three major phyla of worms?
Flatworms are divided into two groups, parasitic and nonparasitic. The parasitic types, which live off of other organisms, consist of Cestoda, Trematoda, and Monogenea flatworms.
What do eyespots do for planaria?
they are useful to detect any kind of light... they need to sense any kind of light because they can not survive in dry conditions and light dry their skin. that is why they sense the light and run away from it to prevent their body from drying...
hope that helps!
Why roundworms have bilaterally symmetrical body?
Because they are parts of phylam Annelida as I have read
Where is Schistosoma mansoni most prevalent?
Schistosoma mansoni is widespread in Africa, the Eastern-Mediterranean, the Caribbean, and South America and can only infect humans and rodents.
How is a flatworm tegument different from a roundworm cuticle?
In flatworms (Platyhelminthes), they have a tegument which is a living outer layer. As a parasite living in the gut of the host, it wants to absorb nutrients from the medium around them, therefore it is important that they have a metabolically active outer layer for vital activities such as absorbtion, protection and secretion.
On the other hand, roundworms (Nemathelminthes) have a rigid outer cuticle which works with the muscles to create a hydroskeleton. It has a digestive system which starts with a mouth and ends at the anus.
This is significant from a medical point of view as this characteristic, having a cuticle
or tegument determines what kind of drug is used to treat the parasite. Some drugs can destroy the living outer layer of a tapeworm, while other drugs are ingested by the roundworms which then attacks the lining of their gut.
Why do parasitic flatworms have a tegument instead of normal epidermis?
Parasitic flatworms have a modified epidermis called a tegument, which protects against the digestive enzymes and immune response of their host. The tegument is folded to increase surface area and to make absorption of nutrients more efficient.
How many body openings do Flatworms have?
They have one opening opening according to Biology flatworm notes I found.
By Khoa
