Q: Answer the question

A fever is a response to a disease-causing agent infecting the body. Raising one's body temperature changes the shape of enzymes in the agent so it cannot reproduce. Which statement best describes a fever?
OPTIONS:
- A fever is an internal response to an external stimulus.
- A fever is an internal response to an internal stimulus.
- A fever is an external response to an external stimulus.
- A fever is an external response to an internal stimulus.

A: A fever is an internal response to an internal stimulus.

Q: Answer the question

Students stir salt, sand, sawdust, and seashells into a jar filled with water. Which of the materials will form a solution?
OPTIONS:
- salt and water
- sand and sawdust
- seashells and water
- sawdust and seashells

A: salt and water

Q: Answer the question

A rubber band will make a sound when it is
OPTIONS:
- vibrated.
- stretched.
- cut into pieces.
- shot across a room.

A:
vibrated.