Which of the following observations could you make based on stimuli to your thermoreceptors?(1 point)
Responses
The ice cream is cold.
The ice cream is cold.
The ice cream is sweet.
The ice cream is sweet.
The ice cream is heavy.
The ice cream is heavy.
The ice cream is white.
The ice cream is cold.
A girl has her eyes shut and is standing inside a brightly lit room. What happens to her pupils when she opens her eyes? Why?(1 point)
Responses
Her pupils shrink because the muscles contract.
Her pupils shrink because the muscles contract.
Her pupils shrink because the muscles relax.
Her pupils shrink because the muscles relax.
Her pupils grow because the muscles relax.
Her pupils grow because the muscles relax.
Her pupils grow because the muscles contract.
Her pupils shrink because the muscles contract.
The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?(1 point)
Responses
Iris
Iris
Sclera
Sclera
Cornea
Cornea
Retina
Iris
How do polar bears maintain homeostasis in freezing cold weather? (1 point)
Responses
Their thick skin insulates the internal organs against the cold.
Their thick skin insulates the internal organs against the cold.
Their metabolism speeds up to produce heat.
Their metabolism speeds up to produce heat.
Their metabolism slows down to preserve heat.
Their metabolism slows down to preserve heat.
Their thick fur retains heat.
Their metabolism speeds up to produce heat.
Which example shows an organism that cannot reach homeostasis through internal changes? (1 point)
Responses
A person gets a fever in response to a flu infection.
A person gets a fever in response to a flu infection.
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.
Circulation decreases in a bird when it becomes too warm.
Circulation decreases in a bird when it becomes too warm.
A dog shivers when it is too cold.