Biology: Concepts and Investigations
4th Edition
ISBN: 9780078024207
Author: Mariëlle Hoefnagels Dr.
Publisher: McGraw-Hill Education
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Chapter 32, Problem 1MCQ
Summary Introduction
Introduction:
Expert Solution & Answer
Answer to Problem 1MCQ
Correct answer:
The mouse uses the most “energy per gram of body weight”. Therefore, option c. is correct.
Explanation of Solution
Reason for the correct statement:
The amount of energy needed to regulate each gram of body weight is inversely proportional to the size of the animal. The mouse has lesser weight as compared to python, eagle, and horse. So, the mouse will have more “energy per gram of body weight”.
Option c. is given as “mouse”.
As, “the mouse has the least weight, the “energy per gram of body weight”, is highest in the mouse” is the right answer.
Hence, option c. is correct.
Reasons for the incorrect statements:
Option a. is given as “horse”.
The horse weight is greater than that of the eagle and mouse. The “energy per gram of body weight” will be lesser of horse relative to that of eagle and mouse. So, it is a wrong answer.
Option b. is given as “eagle”.
The eagle weight is greater than that of the mouse. The “energy per gram of body weight” will be lesser of eagle relative to that of the mouse. So, it is a wrong answer.
Option d. is given as “python”.
The python weight is greatest in all the four animals “mouse”, “eagle”, “horse”, and “python”. The “energy per gram of body weight” will be least of the python. So, it is a wrong answer.
Hence, options a., b., and d. are incorrect.
Conclusion
The “energy per gram of body weight” is highest in the mouse because mouse weight is least among the four animals.
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Chapter 32 Solutions
Biology: Concepts and Investigations
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