Whether the following statements are true or false. False statements are to be corrected. a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body. b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion. c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands. d. The exocrine cells of the pancreas and the salivary glands are islet cells. Introduction: The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

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Answer 1

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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 22, Problem 3CYR

Summary Introduction

To review:

Whether the following statements are true or false. False statements are to be corrected.

a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body.

b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion.

c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands.

d. The exocrine cells of the pancreas and the salivary glands are islet cells.

Introduction:

The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

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6. The mammalian phylogenies (labeled a and b) were produced by two different research groups. a. In which tree do phylogenetic relationships most closely align with biogeography and why? (consult the Teeling and Hedges paper) b. What are the most closely related species to Chiroptera in each tree? Might the use of convergent traits for building phylogenies explain this difference? If so, which tree is most likely to have relied on convergent traits and why? c. What are some possible reasons that the two research groups came up with different phylogenies (in general terms)? describe at least three possible reasons.

Build a model of a prokaryotic cell using any material of your choice. In your model be sure to include all the structures appropriate to your cell. You may model a bacterial cell or an archaea. You will model at least 4 structures in any model. Next, build a model of a virus using the same type of materials. You may choose any type of virus but be sure you can illustrate the key features of a virus (head shape for example). Once complete, take multiple photographs of your models from all angles. Include these images in a document that also contains the following completed table format. You may need to add rows to your table depending on the type of prokaryote you model. Structure Model Key Found in Different in Function Virus Virus Once your model is complete, write a brief description of your cell and your virus. Emphasize features that are absent in viruses that classify them as non-living. You can refer to specific structures in your table in this explanation. Some suggestions for…

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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 22, Problem 3CYR

Summary Introduction

To review:

Whether the following statements are true or false. False statements are to be corrected.

a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body.

b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion.

c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands.

d. The exocrine cells of the pancreas and the salivary glands are islet cells.

Introduction:

The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

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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 22, Problem 3CYR

Summary Introduction

To review:

Whether the following statements are true or false. False statements are to be corrected.

a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body.

b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion.

c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands.

d. The exocrine cells of the pancreas and the salivary glands are islet cells.

Introduction:

The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

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 22, Problem 3CYR

Summary Introduction