Multiple Choice
Which characteristic of life is best demonstrated by the fact that sheep consume roughly 30 to 50 percent of their body weight each day?
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1. Introduction to Biology
Characteristics of Life
Multiple Choice
Which characteristic of life is most directly related to an obese person being over their ideal weight?
A
Ability to reproduce
B
Response to external stimuli
C
Evolutionary adaptation
D
Regulation of internal environment (homeostasis)
Verified step by step guidance1
Understand the concept of homeostasis: Homeostasis refers to the ability of an organism to maintain a stable internal environment despite changes in external conditions. This includes regulating factors such as body temperature, pH levels, and energy balance.
Relate homeostasis to weight regulation: In the context of an obese person, the regulation of internal environment involves maintaining energy balance. This is achieved by balancing energy intake (food consumption) with energy expenditure (physical activity and metabolic processes).
Identify the disruption in homeostasis: Obesity occurs when there is a chronic imbalance in energy regulation, where energy intake consistently exceeds energy expenditure. This disrupts the body's ability to maintain its ideal weight.
Compare homeostasis to other characteristics of life: While reproduction, response to stimuli, and evolutionary adaptation are important characteristics of life, they are not directly related to the regulation of body weight. Homeostasis is the characteristic most directly involved in maintaining an ideal weight.
Conclude the relationship: The characteristic of life most directly related to an obese person being over their ideal weight is the regulation of internal environment (homeostasis), as it governs the processes that maintain energy balance and body weight.
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