Diagram representation of the phylogeny of Platyhelminthes supporting the statement that ancestral flatworms had complex morphology and are free-living and parasitism character is the derived character. Introduction: Platyhelminthes consists of 3 major groups. These are free-living turbellarians, cestodes, and the trematodes. Cestodes and trematodes are the parasitic forms of the Platyhelminthes. According to the researchers, the parasitic forms are derived from the morphologically complex ancestral flatworms.

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 34, Problem 13TYPSS

Summary Introduction

To review:

Diagram representation of the phylogeny of Platyhelminthes supporting the statement that ancestral flatworms had complex morphology and are free-living and parasitism character is the derived character.

Introduction:

Platyhelminthes consists of 3 major groups. These are free-living turbellarians, cestodes, and the trematodes. Cestodes and trematodes are the parasitic forms of the Platyhelminthes. According to the researchers, the parasitic forms are derived from the morphologically complex ancestral flatworms.

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Answer 2

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 34, Problem 13TYPSS

Summary Introduction

To review:

Diagram representation of the phylogeny of Platyhelminthes supporting the statement that ancestral flatworms had complex morphology and are free-living and parasitism character is the derived character.

Introduction:

Platyhelminthes consists of 3 major groups. These are free-living turbellarians, cestodes, and the trematodes. Cestodes and trematodes are the parasitic forms of the Platyhelminthes. According to the researchers, the parasitic forms are derived from the morphologically complex ancestral flatworms.

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Answer 3

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 34, Problem 13TYPSS

Summary Introduction

To review:

Diagram representation of the phylogeny of Platyhelminthes supporting the statement that ancestral flatworms had complex morphology and are free-living and parasitism character is the derived character.

Introduction:

Platyhelminthes consists of 3 major groups. These are free-living turbellarians, cestodes, and the trematodes. Cestodes and trematodes are the parasitic forms of the Platyhelminthes. According to the researchers, the parasitic forms are derived from the morphologically complex ancestral flatworms.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 34, Problem 13TYPSS

Summary Introduction