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Multiple Choice
Which of the following is a direct method for studying homeostasis in an organism?
A
Observing the migration patterns of birds
B
Comparing the diets of different species in an ecosystem
C
Analyzing fossil records for evidence of ancient metabolic rates
D
Measuring changes in blood glucose levels after administering insulin
Verified step by step guidance
1
Understand the concept of homeostasis: Homeostasis refers to the ability of an organism to maintain a stable internal environment despite external changes. This includes regulating factors like temperature, pH, and glucose levels.
Identify the direct method: A direct method for studying homeostasis involves measuring physiological changes within the organism itself, such as blood glucose levels, which are directly tied to metabolic regulation.
Analyze the options: Observing migration patterns, comparing diets, and analyzing fossil records are indirect methods that provide insights into behavior or evolutionary trends but do not directly measure internal physiological processes.
Focus on the correct option: Measuring changes in blood glucose levels after administering insulin is a direct method because it involves monitoring a specific physiological response to a controlled stimulus (insulin).
Conclude the reasoning: Blood glucose levels are a key indicator of metabolic homeostasis, and insulin administration directly affects glucose regulation, making this the most appropriate method for studying homeostasis in an organism.