Chapter 35
Biology: Life on Earth with Physiology · 10 exercises
Problem 1
List the six general types of nutrients. Which two provide the most energy for humans? Which of these stores the most energy in the body, and why?
4 step solution
Problem 2
Give an example of a vertebrate and an invertebrate that both use gizzards. Describe the general structure and function of the gizzard and how it works.
3 step solution
Problem 3
Vertebrates can be grouped into three categories based on their diets; list and briefly define these categories, giving one example of each. Which group has the shortest small intestine, and why?
4 step solution
Problem 4
What is the body mass index? How is it calculated?
4 step solution
Problem 5
List the minerals that are important for the human body, and describe their functions.
2 step solution
Problem 6
Explain why the gastric glands and the small intestine produce different kinds of digestive substances.
4 step solution
Problem 7
Name and describe the muscular movements of the human digestive system, where they occur, and their functions.
5 step solution
Problem 9
Name four structural or functional adaptations of the human small intestine that contribute to effective digestion and absorption.
4 step solution
Problem 10
Describe the processing of a piece of steak, starting in the mouth and ending with the absorption of individual amino acids.
7 step solution
Problem 11
Explain how digestion occurs in sponges.
5 step solution