1. What is the duo-gland adhesive system? Flatworms have cells that produce adhesive secretions along with cells that produce releasing secretions which is also known as the duo-gland adhesive system.
2. Describe the makeup of the muscular system of flatworms.
Flatworms have a muscular pharynx behind their mouth and use it to suck in food.
3. Describe the makeup of the nervous system of flatworms. The makeup of the nervous system of flatworms includes central and peripheral components. The central nervous system consists of ganglia around the statocysts which are sensory organs. The peripheral nervous system consists of networks that supply the epithelium, the muscles and the sensory organs. The nervous system is an orthogon, arranged…show more content… What are flame cells and what do they do? The flame cell is a functional unit in most flatworms or protonephridium. The flame cell consists of a single cell with a tuft of flagella that extends into a tubule. Excess water that contains nitrogenous waste is forced into this tubule as it joins with other cells. 6. Describe how filtration occurs in flatworms.
Filtration occurs through minute rods or extensions of cells in flatworms. These rods are also called weirs.
7. Describe how hypodermic impregnation occurs in flatworms. Some flatworms practice hypodermic impregnation. Hypodermic impregnation is when sperm is transferred to the female by piercing the body wall with the male reproduction organ. The male reproductive organ is called the cirrus. The sperm from the cirrus is then injected into the parenchyma of the female. Other species deliver sperm directly into the female reproductive tract. Young flatworms are born within the egg membrane.
8. Describe what occurs when acoels ingest food. When Acoels ingest food, a temporary gut appears and digestion occurs within vacuoles found inside this temporary gut. After digestion occurs, the gut disappears.
