A scientist observes that when she opens the back door of her house to let her c
ID: 220843 • Letter: A
Question
A scientist observes that when she opens the back door of her house to let her cat out, the songs of a certain species of bird abruptly change. She wants to follow up on her observations with an informal experiment. Which of the following is the best hypothesis for explaining the birds' song changes?
Question 6 options:
The bird species switches from song to warning call whenever it sees a potential predator.
The bird species has a variety of songs that it sings, regardless of what is happening in its environment.
Why does the bird song change when I let the cat out?
The birds stop singing because they are afraid of the cat.
The bird species switches from song to warning call whenever it sees a potential predator.
The bird species has a variety of songs that it sings, regardless of what is happening in its environment.
Why does the bird song change when I let the cat out?
The birds stop singing because they are afraid of the cat.
Explanation / Answer
Ans A the bird species switches from song to warning call whenever it sees a potential predator.
This is th defence mechanism of birds wherein it informs its fellow mates by changing its song to warning call. By this action, all other birds get warned and become cautious to prevent themselves of coming danger.
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