Which example shows an organism that cannot reach homeostasis through internal changes?
Responses
Circulation decreases in a bird when it becomes too warm.
Circulation decreases in a bird when it becomes too warm.
A lizard is cold, and it moves to a sunny rock to warm up.
A lizard is cold, and it moves to a sunny rock to warm up.
A person gets a fever in response to a flu infection.
A person gets a fever in response to a flu infection.
A dog shivers when it is too cold.
A lizard is cold, and it moves to a sunny rock to warm up.
Which organ in the excretory system filters blood?
Responses
bladder
bladder
ureter
ureter
kidney
kidney
urethra
kidney
The example that shows an organism that cannot reach homeostasis through internal changes is: "A dog shivers when it is too cold."
Explanation:
Homeostasis is the ability of an organism to maintain a stable internal environment despite external changes. It involves self-regulating processes that help to maintain physiological balance. Internal changes, such as changes in circulation or the activation of immune responses, are mechanisms that organisms use to maintain homeostasis.
In the given responses, the first three examples demonstrate organisms using internal changes to maintain homeostasis:
1. "Circulation decreases in a bird when it becomes too warm." In this case, the bird's body reduces circulation to reduce heat loss and maintain a stable internal temperature.
2. "A lizard is cold, and it moves to a sunny rock to warm up." The lizard recognizes the cold temperature and actively seeks a warmer environment to regulate its body temperature.
3. "A person gets a fever in response to a flu infection." A fever is a physiological response that raises the body's internal temperature to help combat the infection and restore homeostasis.
On the other hand, the last example, "A dog shivers when it is too cold," does not involve internal mechanisms to maintain homeostasis. Shivering is an external response triggered by the dog's nervous system to generate heat by rapid muscle contractions. It is a voluntary action rather than an internal change.
Therefore, out of the given examples, the organism that cannot reach homeostasis through internal changes is the dog shivering when it is too cold.