Question

What is a tegument Trematodes, a type of flatworm?

1. a thin filament thread that can block the lungs and heart
2, a sense organ that can sense light, touch, and moisture
3. a thick layer of cells that protects the worm from being digested
4. a rectangular body part

Answer 1

a thick layer of cells that protects the worm from being digested.
The tegument is a unique outer covering or syncytial layer found in trematodes (flukes) and some other parasitic flatworms. It is a highly modified epidermis composed of several layers of cells and provides protection against host digestive enzymes and immune responses. It also plays an important role in nutrient absorption and waste excretion.