Q: Gymnosperms have seeds but do not have what?    Choices:  - leaves  - stems  - roots  - flowers  A:
flowers

Q: Bone marrow, the thymus gland, the spleen, and the tonsils are organs in what body system?    Choices:  - skeletal system  - nervous system  - reproductive system  - immune system  A:
immune system

Q: What is harmless water vapor, for a powerplant?    Choices:  - wind  - plasma  - fog  - steam  A:
steam

Q: What fuels provide most of the energy used worldwide?    Choices:  - hydroelectric  - solar  - renewable  - fossil  A:
