question: Write a question you would see in a school textbook. 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.
answer: 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?

question: Write a question you would see in a school textbook. OPTIONS:
- leaking oil from the oil platform might pollute the water
- fishing from the oil platform might reduce the fish population
- drilling in the ocean floor might reduce the water temperature
- changing the ocean floor might increase the number of hurricanes
answer: Offshore oil platforms affect ocean habitats. An ocean environment is most likely damaged by an offshore oil platform because

question: Write a question you would see in a school textbook. OPTIONS:
- The emigration rate will decrease.
- The competition rate will decrease.
- The birth rate will increase.
- The death rate will increase.
answer:
Which of the following best explains what will occur when a population grows larger than the carrying capacity of its environment?