Which of the following is true of all adult vertebrates in terms of homeostasis?

• A. They require external sources to regulate their internal environment.
• B. They have the same blood pressure across all species.
• C. They regulate their internal environment to maintain a stable, constant condition.
• D. They maintain a constant internal temperature.

Answer: (C)

Verified step by step guidance

1. Understand the concept of homeostasis: Homeostasis is the process by which living organisms regulate their internal environment to maintain a stable, constant condition, despite changes in the external environment.
2. Identify the key characteristics of homeostasis in vertebrates: Vertebrates have complex systems that help regulate factors such as temperature, pH, and ion concentrations to maintain equilibrium.
3. Evaluate the options given: Consider each statement and determine if it aligns with the concept of homeostasis. For example, maintaining a constant internal temperature is a form of homeostasis, but not all vertebrates maintain the same temperature.
4. Consider the diversity among vertebrates: Recognize that while all vertebrates regulate their internal environment, the specific mechanisms and conditions (like blood pressure and temperature) can vary widely among different species.
5. Conclude with the correct understanding: The statement 'They regulate their internal environment to maintain a stable, constant condition' is true for all adult vertebrates, as it aligns with the fundamental principle of homeostasis.