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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.
Which stratum is the tough outer layer of the skin?
The stratum corneum is the tough outer layer of the skin.
Which part of the heart encases the heart in a tough outer membrane?
Which part of the heart encases the heart in a tough outer membrane?
What is the tough outer covering of bone?
Periosteum
What is the tough outer coat of the eyeball?
sclera (:
What is euglenas outer covering?
The tough outer covering of Euglena, and Paramecium is called the Pellicle
What is the protective covering of endoparasitic flukes?
tegument!
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.
What is an arthropods tough outer layer called?
Endoskeleton
What is the tough outer covering of a cell membrane?
Cell Wall
What is the tough outer covering of the woody plant?
This is called bark.
What is an arthropod's tough outer covering called?
Exoskeleton/ Chitin
