Question: Choose your answer.

Which of the following can provide the human body with long-term immunity against some diseases?

OPTIONS:
- antibiotics
- vitamins
- vaccines
- red blood cells
My Answer: vaccines

Question: Choose your answer.

Which of the following systems breaks food into nutrients that can be used by the body?

OPTIONS:
- circulatory
- digestive
- respiratory
- reproductive
My Answer: digestive

Question: Choose your answer.

Which tool would be best to use for counting the number of legs on an ant?

OPTIONS:
- ruler
- hand lens
- calculator
- microscope
My Answer: hand lens

Question: Choose your answer.

The heart, veins, arteries, and capillaries make up which organ system?

OPTIONS:
- reproductive
- muscular
- excretory
- circulatory
My Answer:
circulatory