The distinguishing characteristics of flatworms and nemerteans, and describe the main groups of flatworms by giving examples of animals that belong to each group. Concept introduction: The Lophotrochozoa is one of the two major classes of protozoans that include the bilateral animals. They are triploblastic animals and most of them have a true coelom and a tube-within-a-tube body plan. The Lophotrochozoa include the platyhelminths (flatworms), rotifers, nemerteans, mollusks, annelids, and lophophorate phyla.

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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 31.2, Problem 5LO

Summary Introduction

To identify: The distinguishing characteristics of flatworms and nemerteans, and describe the main groups of flatworms by giving examples of animals that belong to each group.

Concept introduction: The Lophotrochozoa is one of the two major classes of protozoans that include the bilateral animals. They are triploblastic animals and most of them have a true coelom and a tube-within-a-tube body plan. The Lophotrochozoa include the platyhelminths (flatworms), rotifers, nemerteans, mollusks, annelids, and lophophorate phyla.

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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 31.2, Problem 5LO

Summary Introduction

To identify: The distinguishing characteristics of flatworms and nemerteans, and describe the main groups of flatworms by giving examples of animals that belong to each group.

Concept introduction: The Lophotrochozoa is one of the two major classes of protozoans that include the bilateral animals. They are triploblastic animals and most of them have a true coelom and a tube-within-a-tube body plan. The Lophotrochozoa include the platyhelminths (flatworms), rotifers, nemerteans, mollusks, annelids, and lophophorate phyla.

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Answer 3

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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 31.2, Problem 5LO

Summary Introduction

To identify: The distinguishing characteristics of flatworms and nemerteans, and describe the main groups of flatworms by giving examples of animals that belong to each group.

Concept introduction: The Lophotrochozoa is one of the two major classes of protozoans that include the bilateral animals. They are triploblastic animals and most of them have a true coelom and a tube-within-a-tube body plan. The Lophotrochozoa include the platyhelminths (flatworms), rotifers, nemerteans, mollusks, annelids, and lophophorate phyla.

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Answer 4

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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 31.2, Problem 5LO

Summary Introduction