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Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This is a fresh water flatworm.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This is a marine flatworm.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This is a fresh water flatworm. This is an anatomy of freshwater flatworm (Planaria), showing the excretory system, with flame-cell. The alimentary canal is stippled.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This shows the nervous system of the flatworm.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This is the flame-cell of the flatworm showing the flagellum (f), the nucleus (n), space among the organs of the body, (v) waste material.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This parasitic flatworm diagram shows the (m) mouth, the (o) opening of the reproductive system, and (s) sucker and spines for attachment. The digestive system is stippled and the nervous system is black.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Probably the most widely known of the flatworms are the tapeworms. These are parasites in the digestive tube of various vertebrates, including man.

Tapeworm

Probably the most widely known of the flatworms are the tapeworms. These are parasites in the digestive…

Tapeworms are parasites in the digestive tube of various vertebrates, including man. this is the much magnfied head.

Tapeworm

Tapeworms are parasites in the digestive tube of various vertebrates, including man. this is the much…

The cestodes or tapeworms (Toenia solium), are parasitic flatworms. The body is usually of great length up to 50 feet, and terminates in a head. From the head the body extends backwards in a ribbon-like body. Shown here is a tapeworm with the head showing in the upper lefthand corner.

Tapeworm

The cestodes or tapeworms (Toenia solium), are parasitic flatworms. The body is usually of great length…