Q: What runs through the penis and opens to the outside at the tip of the penis? Choices: - fallopian tube - prostate gland - vas deferens - the urethra A:
the urethra

Q: What type of gas is used to fill glass tubes of lighted signs? Choices: - synthetic - inert - natural - noble A:
noble

Q: What do all respiratory diseases affect? Choices: - liquid exchange process - helium exchange process - transit exchange process - gas exchange process A:
gas exchange process